Based on the thermodynamic calculations, the specific heat of titanium trioxide was determined to be 308.27 K.
What is an example of thermodynamics?Refrigerators, air conditioners, and washing machines are a few examples of thermodynamic systems. An air conditioner is a black box that circulates refrigerant, changing its pressure at various locations to facilitate the transmission of heat.
The liquid's boiling point can be expressed as follows:
Boiling Point = ΔH/ΔS
The values of enthalpy and entropy for liquid and gaseous titanium chloride are given in the table attached.
The value of change in enthalpy ΔH for titanium chloride boiling is given as:
ΔH = Δ[tex]H{gas}[/tex] - Δ[tex]H_{liquid}[/tex]
ΔH = -763.2 - (804.2)kJ
ΔH = 41kJ/mol
The reaction's value for change in entropy is given as:
ΔS = Δ[tex]S_{gas}[/tex] - Δ[tex]S_{liquid}[/tex]
ΔS = 354.9 - 221.9 J/mol.K
ΔS = 133 J/mol.K
The formula for titanium tetrachloride's boiling point is:
Boiling point = 41000 J/mol/133 J/mol.K
Boiling Point = 308.27 K
Based on the thermodynamic calculations, the specific heat of titanium trioxide was determined to be 308.27 K.
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please help me will give brainlies
What does Le Châtelier's principle predict will happen to a system if equilibrium is upset in the following ways? (2 points)
Additional reactant is added. (0.5 point)
Additional product is added. (0.5 point)
Heat is added. (0.5 point)
Pressure is increased in a gaseous system. (0.5 point)
Le Châtelier's principle predicts the following outcomes if equilibrium is upset in the following ways:
If additional reactant is added, the equilibrium will shift towards the products to maintain a balance between the reactants and products.
If additional product is added, the equilibrium will shift towards the reactants to maintain a balance between the reactants and products.
If heat is added, the equilibrium will shift in the direction that absorbs heat to counteract the increase in temperature. If heat is removed, the equilibrium will shift in the direction that releases heat to counteract the decrease in temperature.
If pressure is increased in a gaseous system, the equilibrium will shift towards the side with fewer moles of gas to reduce the pressure. If pressure is decreased, the equilibrium will shift towards the side with more moles of gas to increase the pressure.
In an isochoric process, heat is added to 10 mol of monoatomic ideal gas whose temperature increases from 273 to 373 K. What is the entropy change of the gas?
The entropy change of the gas is ΔS = 4.74 R.
The entropy change of the gas in an isochoric process can be calculated using the formula ΔS = nCvln(T2/T1), where n is the number of moles of gas, Cv is the molar specific heat at constant volume, T1 is the initial temperature, and T2 is the final temperature.
Given that n = 10 mol, Cv = 3/2 R for a monoatomic ideal gas, T1 = 273 K, and T2 = 373 K, we can plug these values into the formula to find the entropy change:
ΔS = 10 mol × (3/2 R) × ln(373 K/273 K)
ΔS = 15 R × 0.316
ΔS = 4.74 R
Therefore, the entropy change of the gas is 4.74 R.
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Knowing the melting point of ethanol is -114°C in the boiling point of ethanol is degrees Celsius, draw a heating curve, and label each line segment with the state of matter that is present ( solid only, solid and liquid,liquid only, liquid and gas, and gas only).
The heating curve of ethanol from point a to f is shown below
What is the position in the line segment of the heating curveThis is a heating curve of ethanol, where the x-axis represents the temperature in degrees Celsius and the y-axis represents the amount of heat energy absorbed by the sample.
Segment AB represents the heating of a solid ethanol sample, where the temperature rises until it reaches the melting point (-114°C). At point B, the solid starts to melt and coexists with liquid ethanol until all of the solid is melted. This segment BC represents the transition from solid to liquid phase, where the temperature remains constant while the substance absorbs heat energy to break the intermolecular bonds holding the molecules in the solid phase together.
Segment CD represents the heating of a liquid ethanol sample, where the temperature rises until it reaches the boiling point (78.4°C). At point D, the liquid starts to boil and coexists with gaseous ethanol until all of the liquid is vaporized. This segment DE represents the transition from liquid to gas phase, where the temperature remains constant while the substance absorbs heat energy to break the intermolecular bonds holding the molecules in the liquid phase together.
Segment EF represents the heating of a gaseous ethanol sample, where the temperature rises as the substance absorbs heat energy.
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can someone help me with this?
please tell me what arrows to add and I will give brainiest
Within 5 years the kinetic energy needed for the phase change of methane is increased by some factors. Hence, the arrow for change in kinetic energy for the phase change can be used here.
What is kinetic energy change ?The phase change of a substance is the change from one state or phase to the other such as from solid to liquid, liquid to vapor etc. The minimum energy needed to overcome the barrier potential for a physical and chemical change is called its activation energy or activation potential.
A substance need kinetic energy to move apart its molecules which are strongly connected in liquid phase to convert it into vapor phase. If the activation potential increases, the substance need more kinetic energy.
Here, if the kinetic energy needed for the phase change of liquid methane increases. That is the reason why liquid methane in Titan not evaporated for some years.
Here the actual change in kinetic energy is increasing, thus, the methane gas is needed to gain more energy to evaporate. Hence, you have to add the first arrows given in the data.
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Please help!
Hydrochloric acid is a strong acid whereas acetic acid is a weak acid.
i. How would the pH of a 0.01M acetic acid compare to pH value for 0.01M HCl?
(Explain in your own words without calculating)
ii. Calculate the pH of a 0.01 M acetic acid.
Because HCl is a stronger acid than acetic acid, the pH of 0.01M acetic acid has greater value than the pH of 0.01M HCl. 2.88 is the pH of a 0.01 M acetic acid.
What is acid?Any hydrogen that comprises a material capable of giving a proton (a hydrogen ion) to another chemical is defined as acid. A base is indeed a molecule or ion that can receive a hydronium ion from just an acid.
1)Because HCl is a stronger acid than acetic acid, the pH of 0.01M acetic acid has greater value than the pH of 0.01M HCl. The pH value of stronger acid is lower.
2)CH[tex]_3[/tex]COOH + H[tex]_2[/tex]O ⇄ CH[tex]_3[/tex]COO⁻+ H[tex]_3[/tex]O⁺
0.01 0 0
-x +x +x
0.01-x +x +x
Ka=[ CH[tex]_3[/tex]COO⁻][H[tex]_3[/tex]O⁺]/[CH[tex]_3[/tex]COOH]
1.8×10⁻⁵ = [x][x ]/[ 0.01-x ]
x=1.34×10⁻³
pH = -log[H⁺]
= -log[1.34×10⁻³]
=2.88
Therefore, because HCl is a stronger acid than acetic acid, the pH of 0.01M acetic acid has greater value than the pH of 0.01M HCl. 2.88 is the pH of a 0.01 M acetic acid.
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Select the reagents you would use to synthesize the required in any synthesis. compounds below from benzene. Use the minimum number of steps. No more than three steps are List the letters of the reagents in the order that they are used; example: fa a. Br2, FeBr3 b. Clh. FeCl c HNO3. H2SO d. CH3CI, AIC Reagents Available e. CH,COCI, AlC hSOsH2SO f. KMnO4. H20 g. Fe, Hy0", then OH m-bromonitrobenzene: 2-bromo-4 nitrotoluene:
The reagents you would use to synthesize the required in any synthesis. compounds below from benzene is [HNO₃, H₂SO₄] is used first then followed by reagent [Br₂, FeBr₃]. the correct answer is F and A.
We are going to employ reagents in option 'f' followed by reagents in option 'a' in the manufacture of m-bromonitrobenzene[3-Nitro-1-bromobenzene/1-Bromo-3-nitrobenzene] from benzene using the reagents given by using the fastest reagents, that is, the reagent with the least number of steps.
To produce m-bromonitrobenzene [3-nitro-1-bromobenzene/1-bromo-3-nitrobenzene] from benzene in the fewest steps possible using the reagents provided, the first step is to nitrate the benzene using the reagents in option 'f', i.e., HNO₃, H₂SO₄to produce nitrobenzene. The following is the chemical reaction's equation:
C₆H₆ + HNO₃, H₂SO₄ ⇒ C6H5NO2.
In the reaction process, N+O₂ is utilized [from the reaction:
HNO₃ + H₂SO₄⇔ N⁺O₂ + HSO₄⁻ + H₂O].
STEP TWO: The next step is to combine the reagents listed in Option 'a' [Br2, FeBr3] with the nitrobenzene that was produced during the nitration of benzene in Step One above. The bromination of nitrobenzene is the name of this process.
C₆H₅NO₂ + Br₂, FeBr3 ⇒ C₆H₄BrNO₂.
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Convert 0.031 moles of aluminum iodide into its corresponding mass in grams!
The mass of 0.031 moles aluminium iodide is 12.61 grams. The molar mass of aluminium iodide is 407.68 g/mol.
ExplanationFormula:
[tex]\boxed{\tt g=n\times Mr}[/tex]
n = moles number of molecules, mol.g = mass of molecules, grams.Mr = molar mass, g/mol.Given:
Periodic Table of Elements:Therefore,
First, calculate the molar mass of AlI₃.
Aluminum (Al):Second, calculate the mass of AlI₃.
g = n x MrSo, 0.031 moles of aluminum iodide correspond to 12.61 grams of aluminum iodide.
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How many grams of NaNO³ are required to make a saturated solution in 100g H20 at 30°C?
How much can be dissolved?
Answer: About 95 grams
Explanation:
When reading these types of graphs, it helps to know about solubility curves.
Any point on the line is considered a saturated solution.
Any point above the line is considered a supersaturated solution.
Any point below the line is considered an unsaturated solution.
If you look at x-axis where the temperature is listed, look for 30°C. Move up the graph until you come to the line for NaNO₃. It appears at 30°C there are about 95 grams.
oxygen and sulfur bonding patterns: build each of the indicated molecules below in the simulator and match them to the correct bonding pattern in respect to either oxygen or sulfur. remember if a molecule does not have a name when you build it is not a stable arrangement and you might have to reorder your atoms. for example: h2o - 2 single bonds as you complete the matching below think of the following: how do oxygen and sulfur atoms tend to bond in molecules? what patterns do you see? how many covalent bonds (total) do oxygen atoms or sulfur atoms tend to form? group of answer choices ocl2 [ choose ] no [ choose ] onh [ choose ] co2 (only describe one of the oxygen atoms) [ choose ] bs [ choose ] sis2 (only describe one of the sulfur atoms) [ choose ]
The compromise for these two elements would be to share valence electrons in order for them to adhere to the octet rule. Nonmetallic elements oxygen and Sulphur fall into this category. Covalent bonds are produced when atoms share electrons.
What is meant by element?Chemical substances that cannot be converted into other chemicals are referred to as elements.Chemical elements are distinguishable from one another by the number of protons in their atoms' nucleus, which is the fundamental particle that makes up a chemical element. A crucial component of a whole. a simple substance that cannot be divided into smaller components or transformed into another substance is referred to as in chemistry. Atoms, which are made up of protons, neutrons, and electrons, are the building blocks of an element. One element has a fixed number of protons in each of its atoms. A basic thing that is difficult to divide into smaller parts is known as an element.To learn more about element, refer to:
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show that the ratio of cations to anions in the unit cell of li2o corresponds to the ratio of cations to anions in the formula of the compound.
Strontium chloride, which is used in fireworks, contains a 1:2 ratio of cations to anions.
What is meant by Strontium chloride?A strontium and chloride salt is known as strontium chloride. It is a "typical" salt and creates watery neutral solutions. This salt creates a bright red flame, just like all strontium compounds do, and is frequently used in pyrotechnics because of this. Typical strontium and chlorine salts include strontium chloride, which has the chemical formula SrCl2. For producing collodion chloride and printing emulsions, strontium chloride is a common halide. As a red coloring ingredient in pyrotechnics, strontium chloride is frequently employed. Compared to most alternatives, it gives the flames a red color that is far more powerful. It is used in modest amounts in the manufacture of glass and metallurgy.The complete question is:
Determine the ratio of cations to anions in each, strontium chloride, used in fire works
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Water molecules are attracted to each other due to the opposite charges created by partial charge separations within the molecules. These attractions are called:
A. peptide bonds.
B. covalent bonds.
C. ionic bonds.
D. hydrogen bonds.
E. double bonds.
These attractions are called: hydrogen bonds. Option D is the correct answer.
What is hydrogen bonds?This refers to is a special type of dipole-dipole attraction between molecules, not a covalent bond to a hydrogen atom. It results from the attractive force between a hydrogen atom covalently bonded to a very electronegative atom such as a N, O, or F atom and another very electronegative atom.
Hydrogen bonds are strong intermolecular forces created when a hydrogen atom bonded to an electronegative atom approaches a nearby electronegative atom. Greater electronegativity of the hydrogen bond acceptor will lead to an increase in hydrogen-bond strength.
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calculate the quantity of heat energy released when 543 g of steam condenses. answer in units of kj. answer in units of kj.
The quantity of heat energy released when 543 g of steam condenses is 1,228.5 kJ.
To calculate the quantity of heat energy released when 543 g of steam condenses, we need to use the heat of vaporization of water, which is the amount of energy required to vaporize one mole of water. The heat of vaporization of water is 40.7 kJ/mol at standard conditions.
First, we need to determine how many moles of water are in 543 g of steam. The molar mass of water is 18.015 g/mol, so we can calculate the number of moles as follows:
n = m/M = 543 g / 18.015 g/mol = 30.15 mol
Next, we can calculate the amount of heat energy released by multiplying the number of moles of water by the heat of vaporization of water:
q = nΔHvap = 30.15 mol x 40.7 kJ/mol = 1,228.5 kJ
Therefore, the quantity of heat energy released when 543 g of steam condenses is 1,228.5 kJ.
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iron: group of answer choices can be purified by pounding out impurities. melts easily with a charcoal fueled fire. can be easily extracted from its native ore. was easy to work with once it was realized which ores contained it.
It is a very versatile and durable material that can be purified, melted, and extracted from its native ore with relative ease.
Iron is a type of metal that has been used for thousands of years in the production of tools, weapons, and other useful items. However, it is important to note that there are certain characteristics that make iron unique and distinguish it from other metals.
One of the main characteristics of iron is that it can be purified by pounding out impurities. This is done by heating the iron to a high temperature and then hammering it to remove any impurities that may be present. This process is known as forging and is used to create strong and durable iron products.
Another characteristic of iron is that it melts easily with a charcoal fueled fire. This is because iron has a relatively low melting point, which makes it easy to work with and shape into different forms. This characteristic is one of the reasons why iron has been used for so long in the production of tools and other items.
Iron can also be easily extracted from its native ore. This is done through a process known as smelting, in which the iron ore is heated to a high temperature in order to separate the iron from other elements that may be present. Once the iron has been extracted, it can be purified and used to create a variety of different products.
Finally, it is important to note that iron was easy to work with once it was realized which ores contained it.
This knowledge allowed people to more easily extract and work with iron, leading to the development of new tools and technologies that have had a lasting impact on human civilization.
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A 5.00 g sample of hydrated barium chloride BaCl2 nH2O is heated to drive off the water after heating 4.26 g of anhydrous barium chloride BaCl2 remains what is the value of n in the hydrate formula
A 5.00 g sample of hydrated barium chloride BaCl[tex]_2[/tex].nH[tex]_2[/tex]O is heated to drive off the water after heating 4.26 g of anhydrous barium chloride BaCl[tex]_2[/tex] remains 2 is the value of n in the hydrate formula BaCl[tex]_2[/tex].2H[tex]_2[/tex]O.
What is barium chloride?An inorganic substance with both the formula BaCl[tex]_2[/tex] is barium chloride. It is among the most popular barium salts that dissolve in water. Like the majority of those other water-soluble barium salts, it burns with a yellow-green hue and is a white powder. It is also extremely poisonous.
Moreover, it is hygroscopic, changing to the colorless crystals with a salty aftertaste known as BaCl[tex]_2[/tex].nH[tex]_2[/tex]O dihydrate. In the laboratory as well as industry, it is only sometimes used.
BaCl[tex]_2[/tex].nH[tex]_2[/tex]O + heat [tex]\rightarrow[/tex] BaCl[tex]_2[/tex] + nH[tex]_2[/tex]O
Mass of BaCl[tex]_2[/tex].nH[tex]_2[/tex]O before heating= 5.00 grams
Mass of anhydrous BaCl[tex]_2[/tex] after heating = 4.26 grams.
mass of nH2O= 5.00 grams –4.26 grams = 0.74 grams
Moles of BaCl[tex]_2[/tex] = 4.26/208=0.02048mol
Moles of H[tex]_2[/tex]O =0.74/18=0.040111mol
For BaCl[tex]_2[/tex] = 0.02048/0.02048=1
For H[tex]_2[/tex]O =0.04111/0.02048 = 2
the formula is BaCl[tex]_2[/tex].2H[tex]_2[/tex]O
Therefore, 2 is the value of n in the hydrate formula BaCl[tex]_2[/tex].2H[tex]_2[/tex]O.
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which of the following equations correctly relate the change in entropy, reversible heat, and kelvin temperature of a process? select all that apply.A. qrev = S X TB. T =qrev x SC. S = qrev x TD. S = qrev/T
The equations correctly relate the change in entropy, reversible heat, and kelvin temperature of a process are
A. qrev = S X TD. S = qrev/TWhat is EntropyEntropy is a measure of the degree of disorder of a thermodynamic system. Entropy is also a definition of the energy available in a system of a certain form. In equations, entropy is represented by the letter “S” and has units of joules per kelvin.
If we give an example of the melting of ice, in solid form ice tends to have a low degree of disorder so it has a small entropy value.
Meanwhile, when the ice melts and changes into a liquid form, the entropy value will increase because the liquid phase has a higher disorder than the solid phase. If the water evaporates into a gaseous form, the degree of disorder will also increase so that the entropy value will also increase because the gaseous form has the highest degree of disorder.
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Be sure to answer all parts. From the following pair of compounds choose which one will react faster with the indicated reagent, and provide a chemical equation for the faster reaction: toluene or chlorobenzene with a mixture of nitric acid and sulfuric acid
Part 1 The compound that will react faster is: a. chlorobenzene
b. toluene Part 2
The resulting product will be _______-substituted.
Chlorobenzene will react slowly than toluene. The electrophile will be substituted in the finished product.
What makes benzene and toluene different from one another?A benzene derivative is toluene. Toluene and benzene are fundamentally different from one another because toluene possesses a methyl group while benzene does not. In an aromatic electrophilic substitution process, the molecule with a high electron density is attacked by the electrophile.
Toluene is highly reactive, why?Toluene is more reactive than benzene because of the +I effect of the CH3 atom. Both benzoic acid and nitrobenzene are less reactive than benzene as a result of the electron-withdrawing nature of their respective COOH and NO2 groups.
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when a substance changes into an entirely new substance with different properties, it is called a ___ change.
When a substance changes into an entirely new substance with different properties, it is called a chemical change.
A chemical change is a process where a substance undergoes a transformation that results in the formation of a new substance with different chemical and physical properties. During a chemical change, chemical bonds between atoms are broken and new ones are formed, leading to the creation of a different substance.
Chemical changes are typically irreversible and involve a release or absorption of energy in the form of heat, light, or sound. Examples of chemical changes include combustion, oxidation, and digestion. In contrast, physical changes involve a change in the physical state or form of a substance without altering its chemical composition.
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calculate the energy of attraction between a cation with a valence of 3 and an anion with a valence of -3 the centers which are separated by 4.6 nm
The energy of attraction between a cation with a valence of 3 and an anion with a valence of -3 the centers which are separated by 4.6 nm is -9.69·10⁻¹¹N.
F = k·q₁·q₂ ÷ r².
F is attraction force.
k is Coulomb's law constant, 8,9·10⁹ N·m² / C².
q₁ is quantity of charge of cation.
q₂ is quantity of charge of anion.
r is distance between anions.
q₁ = 3·1,6·10⁻¹⁹ = 4.8·10⁻¹⁹ C.
q₂ = -3x 1·6 x 10⁻¹⁹ C. = -4.8·10⁻¹⁹ C.
F = k·q₁·q₂ ÷ r².
F = 8.9·10⁹ N·m²/C² · 4.8·10⁻¹⁹ C · (-4.8·10⁻¹⁹ C.) ÷ (4·6 x 10⁻⁹ m)².
F = -2.05·10⁻²⁷ N·m² ÷ 2.116·10⁻¹⁷ m².
F = -9.69·10⁻¹¹N.
Therefore, an anion with a valence of -3 and a cation with a valence of 3 have centers that are separated by 4.6 nm, and the energy of attraction between them is -9.69 x 10¹¹N.
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In the following figure, which curve represents [SO2].[O2], and [SO3]? All three gases are present initially. so, sO2 SO3l O1ol (02 OL Time
Because SO2 and O2 have a 1: 0.5 stoichiometric ratio, a drop in SO3 concentration is greater than a decrease in O2 concentration.
What is called reaction?one or more new substances are formed as a consequence of the rearrangement of the molecules or atoms of multiple substances that come into contact.
Because SO3 is a result of the reaction and its concentration rises over time as the reaction progresses, curve [B] (the red line) represents SO3.Because SO2 is on the products side and the concentration of reactants, including SO2, declines with time, curve [C] (i.e., the blue line) is for SO2.O2 is represented by curve [A] (the green line), since it is a product and its concentration declines over time.To know more about stoichiometric ratio, visit:
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For the following reaction, if O₂ is used up at a rate of 4.62 M/hr
, what is the rate of consumption of CH₂OH?
2 CH3OH + 302 → 2 CO₂ + 4H₂O
If O₂ is used up at a rate of 4.62 M/hr. the rate of consumption of CH₂OH is 2.31 M/hr.
What is the rate of consumption of CH3OH?To find the rate of consumption of CH3OH, we need to balance the equation and use the stoichiometry of the reaction.
2 moles of CH3OH react with 1 mole of O2 to form 2 moles of CO2 and 4 moles of H2O. So, the rate of consumption of CH3OH is half the rate of consumption of O2.
The rate of consumption of O2 is given as 4.62 M/hr, so the rate of consumption of CH3OH is:
4.62 M/hr / 2 = 2.31 M/hr
Therefore, the rate of consumption of CH3OH is 2.31 M/hr.
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Review the terms and their definitions in the Mini Glossary. Write a sentence identifying three things you need to include in a description of any object's position. Then choose an object in the room. Write another sentence describing the position of the object.
The three things that you need to include when describing the position of any object include the reference point, the distance, and the direction of the object.
Let's say we have a chair in a room, we can describe its position as follows;
The chair was positioned 30 cm from the bed while facing northward.
How to describe the positionIn order to describe the position of an object, the person making the description ought to include the distance. In the above example, the distance is 30 cm.
Next, a reference point should be used and in this case, the reference point is the bed. Finally, the direction of the object should be mentioned in the description. The direction in this case is North. So, the above description incorporates the three main points.
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Part B
Read about reverse osmosis and multistage flash distillation. Then identify at least three advantages and three disadvantages for each process.
PLEASE ANSWER!!!!!!
The reverse osmosis better than flash distillation because as models based on evaporation require both electrical and thermal energy to function, salty water RO (SWRO) has a 3–4 times lower energy requirement than MSF and 2-3 times lower energy requirement than MED.
What is reverse osmosis ?A partly permeable membrane is used in the reverse osmosis method of water filtration to extract bigger particles, undesirable compounds, and ions from drinking water.
Advantages - It aids in balancing the solute content on the two sides of the membrane. Effective water softening is achieved via reverse osmosis, which is very simple to maintain.
Disadvantages -It uses a great deal of energy. Deionization requires a lot of pressure. Minerals being deionized cause a rise in water acidity.
Advantages -Distillation utilizes waste heat, which is cost-effective. Its output gain ratio is high. In comparison to reverse osmosis, supply water quality is less important.
Disadvantages - In the event that waste heat is not available, it has a high operational cost. High temperatures are associated with increased corrosion and scale development.
Thus, Reverse osmosis is a membrane treatment procedure primarily utilized to distinguish dissolved solutes from water.
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: Be sure to answer all parts. From the following pair of compounds choose which one will react faster with the indicated reagent, and provide a chemical equation for the faster reaction: Bensophenome(cu.com.) or biphenyi(CH3-C4 with chlorine and ironi) chloride ax Part 1: The compound that will react faster is: • biphenyl benzophenone Part 2: The resulting product will be ortho, para substituted. Part 3 out of 3 Draw the products of the reaction: iron(III) chloride craw structure draw structure ortho product para product 3 kit Check my work Check my work Next part
Draw the Lewis structure for the biphenyl molecule. Draw Lewis Structure biphenyl molecule.
What is the molecule?A molecule is a smallest unit of matter that can exist independently and is made up of two or more atoms that are chemically bonded together. Molecules are the building blocks of all matter and are composed of atoms from the same element or from different elements. Molecules can exist as single atoms, or they can be combined with other atoms to form complex structures. Molecules can be found in liquids, solids, and gases.
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How many pounds of 100% gas chlorine are needed to disinfect a flow of 85000gpd at 8mg/l
One would need approximately 1250.6 pounds of 100% gas chlorine to disinfect a flow of 85000 gallons per day at a concentration of 8 mg/L.
What is chlorine?The chemical element chlorine has the atomic number 17 and the symbol Cl.
The second-lightest halogen, fluorine is situated between bromine and fluorine in the periodic table and has most of its features in the middle.
To calculate the amount of chlorine needed to disinfect a flow of 85000 gallons per day (gpd) at a concentration of 8 mg/L, you can use the following formula:
Mass of chlorine = flow rate x concentration x 8.34
Put in the values:
Mass of chlorine = 85000 * 8 * 8.34
Mass of chlorine = 567200 g
To convert this amount to pounds, divide it by the conversion factor between grams and pounds (453.59):
Mass of chlorine in pounds = 567200 / 453.59
Mass of chlorine in pounds = 1250.6 lb
Thus, 1250.6 pounds of 100% gas chlorine would be required to disinfect an 85000-gallon flow per day at a concentration of 8 mg/L.
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When balancing a chemical equation, which of the following is/are permissible? (Select all that apply.)
a. placing a coefficient in front of a formula
b. removing elements from a formula
c. adding or removing a substance
d. changing a subscript in a formula
When balancing a chemical equation, the permissible is option: A. placing a coefficient in front of a formula
This is permissible because it is used to balance the number of atoms on each side of the equation.
For example, if there are two oxygen atoms on the left side of the equation and only one on the right side, a coefficient of 2 can be placed in front of the oxygen on the right side to balance the equation.
b. removing elements from a formula
This is not permissible because it changes the identity of the substance and would not accurately represent the chemical reaction.
c. adding or removing a substance
This is not permissible because it changes the overall reaction and would not accurately represent the chemical reaction.
d. changing a subscript in a formula
This is not permissible because it changes the identity of the substance and would not accurately represent the chemical reaction.
In conclusion, only placing a coefficient in front of a formula is permissible when balancing a chemical equation.
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Provide the correct IUPAC name for CuClO₃.
Answer: copper (I) chlorate
Explanation:
CuClO₃
Cu (copper) is a transitional metal, so its charge will depend on the charge for the polyatomic ion ClO₃. ClO₃⁻ is the chlorate ion and it has a -1 charge.
Since there is one copper ion, its charge must be +1 to balance with the -1 charge on the chlorate ion ClO₃⁻.
Cu⁺ and ClO₃⁻ is called copper (I) chlorate
describe the observations during the aqueous sodium bicarbonate wash. draw the chemical reaction occurring that explains this observation
Aqueous sodium bicarbonate wash is a common laboratory technique used to remove acidic impurities from an organic compound. When an organic compound is treated with aqueous sodium bicarbonate (NaHCO3) solution, it may react with the bicarbonate ion (HCO3-) in the following chemical reaction:
R-COOH + NaHCO3 → R-COONa + H2O + CO2
where R is the organic group.
The reaction produces carbon dioxide (CO2) gas, which causes the solution to effervesce (bubble) and foam. This effervescence is a visual indicator that the reaction is taking place. The effervescence occurs because carbon dioxide gas is less soluble in water than in the organic solvent, and thus the gas is released from the solution.
Additionally, the reaction may cause the pH of the solution to increase, as the bicarbonate ion (HCO3-) can act as a weak base and react with acidic protons on the organic compound. The increase in pH can be detected using a pH indicator such as litmus paper or a pH meter.
Overall, the observations during the aqueous sodium bicarbonate wash include effervescence (bubbling and foaming) due to the release of carbon dioxide gas, and a possible increase in pH due to the reaction of bicarbonate ion with acidic protons on the organic compound. These observations indicate that the acidic impurities in the organic compound have reacted with the basic bicarbonate ion and have been removed from the solution.
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in ipv6, each extension header is identified by a specific value known as which of the following. question 17 options: routing header next header hop-by-hop options traffic class flow label
In IPv6, each extension header is identified by a specific value known as the "Next Header" field. This field specifies the type of header that follows the extension header, allowing to correctly interpret the packet.
The value in the Next Header field indicates whether the next header is a routing header, a hop-by-hop options header, a fragmentation header, or some other type of extension header.
IPv6 (Internet Protocol version 6) is a network layer protocol for packet-switched networks. It is the successor to IPv4 and was designed to address the exhaustion of IPv4 addresses, as well as to provide improvements in routing and security. IPv6 provides a vastly larger address space than IPv4, which is necessary to accommodate the increasing number of devices and users on the Internet.
IPv6 addresses are 128-bit numbers, written in hexadecimal notation, and are typically represented as eight groups of four hexadecimal digits, separated by colons. IPv6 addresses can be divided into subnets, and the addressing architecture allows for automatic address configuration and the efficient routing of packets.
In addition to the larger address space, IPv6 provides a number of other enhancements over IPv4, including improved routing efficiency, better support for mobile devices, and stronger security features. However, IPv6 adoption has been slow, due in part to the need for significant changes to network infrastructure and the perceived complexity of the protocol.
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how many grams of HNO3 are produced from 8.30 g NO2?
Therefore, approximately 7.58 grams of HNO3 are produced from 8.30 grams of NO2.
What is mole?In chemistry, a mole (mol) is a unit of measurement used to express the amount of a substance. One mole of a substance is defined as the amount of that substance that contains the same number of particles (atoms, molecules, or ions) as there are atoms in 12 grams of pure carbon-12. This number of particles is known as Avogadro's number and is approximately 6.022 x 10^23 particles per mole.
Here,
The balanced chemical equation for the reaction between nitrogen dioxide (NO2) and water (H2O) to form nitric acid (HNO3) is:
3 NO2 + H2O → 2 HNO3
This equation tells us that for every 3 moles of NO2 reacted, 2 moles of HNO3 are produced.
To determine the number of moles of NO2 in 8.30 g, we first need to calculate its molar mass:
Molar mass of NO2 = 14.01 g/mol + 2(16.00 g/mol) = 46.01 g/mol
Number of moles of NO2 = mass ÷ molar mass = 8.30 g ÷ 46.01 g/mol ≈ 0.1805 mol
From the balanced equation, we know that 3 moles of NO2 produce 2 moles of HNO3. So, the number of moles of HNO3 produced from 0.1805 mol of NO2 is:
Number of moles of HNO3 = (2/3) × 0.1805 mol = 0.1203 mol
Finally, we can use the molar mass of HNO3 to convert this number of moles into grams:
Molar mass of HNO3 = 1(1.01 g/mol) + 1(14.01 g/mol) + 3(16.00 g/mol) = 63.01 g/mol
Mass of HNO3 produced = number of moles × molar mass = 0.1203 mol × 63.01 g/mol ≈ 7.58 g
Therefore, approximately 7.58 grams of HNO3 are produced from 8.30 grams of NO2.
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State whether reactants or products will be favored by an increase in the total pressure on each equilibrium listed below. If no change occurs, explain why that is so. ( g means gas, s means solid)1. H2O(g) + C(s) ↔ H2(g) + CO(g)2. 4NH3(g) + 5O2(g) ↔ 4NO(g) + 6H2O(g)3. CO(g) + H2O(g) ↔ CO2(g) + H2(g)
An increase in pressure will not favor either the reactants or products. The reaction will remain at equilibrium.
To predict whether an increase in total pressure will favor the reactants or products, we need to look at the balanced chemical equation and the stoichiometry of the reaction.
The effect of pressure on each equilibrium is as follows:
H2O(g) + C(s) ↔ H2(g) + CO(g)
An increase in pressure will favor the side of the equation with fewer moles of gas.
In this case, the reaction will be favored in the direction of the products, H2(g) and CO(g).
4NH3(g) + 5O2(g) ↔ 4NO(g) + 6H2O(g)
An increase in pressure will favor the side of the equation with fewer moles of gas.
In this case, the reaction will be favored in the direction of the products, NO(g) and H2O(g).
CO(g) + H2O(g) ↔ CO2(g) + H2(g)
The total number of moles of gas is the same on both sides of the equation.
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