Brass is the solution in which a solid is dissolved in a solid
What is solution?If we talk about a solution we know that something have been dissolved in another. This is the key conscept when we talk of a solution. We often think of teh dissolution of a solid olr a gas in a liquid when the word solution does pop up.
Has it ever occured to you that a solid can also be dissolved ion a solid? Oh yes! This is what we call the alloys. There is an alloy when there is the solution of a solid in a solid such as brass.
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Brass is the solution in which a solid is dissolved in a solid and is therefore denoted as option D.
What is a Solid?
This is one of the four fundamental states of matter and the molecules are usually closely packed together and contain the least amount of kinetic energy.
Brass is a solution of zinc in copper. Brass is proposed by mixing molten zinc with molten copper and cooling their mixture which brings about them being homogenous.
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The full question:
brass is the solution in which a solid is dissolved in a(n)Select one:
a. gas
b. liquid
c. water
d. solid
What is reactivity series of metals explain?
The reactivity series of metals is a series of metals, in order of reactivity from highest to lowest. It is used to determine the reactivity of a metal and the feasibility of replacing one metal with another in a chemical reaction. Metals that are higher in the series are more reactive and will displace those lower in the series. The most reactive metals, such as potassium, sodium, lithium, and calcium, are found at the top of the series. Metals such as lead, copper, and iron are found at the bottom and are the least reactive.
What is metals?
Metals are chemical elements that are characterized by their shiny appearance, malleability, electrical and thermal conductivity, and ductility. Metals are found in the Earth's crust and are abundant in the Earth's core. Commonly used metals include aluminum, copper, iron, tin, silver, gold, lead, and zinc.
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a 20.0 ml sample of glycerol has a mass of 25.8 grams. what is the density of glycerol in ounces/quart?
Glycerol has a density of ounces/quart equal to. The mass of a sample of glycerol is grams. 1 ounce equals 28.4 grams.
What is Glycerol?Glycerol is a colourless, odourless, thick liquid generated from both animal and plant fats. It is also known as glycerin or glycerine. It is always found in a wide range of goods, including medications, personal hygiene products, food, and drinks. It is a natural moisturizer, fluid, and lubricant and is a key component of many fats.
Glycerol – a fat or a sugar?Glycerin is a type of carbohydrate known as a polyol, along with other sugar alcohols including sorbitol and erythritol. Glycerin feels sweet, just as sugar alcohols, which I've already discussed. Many living creatures require the sugar alcohol glycerol to survive. It is a part of lipids like phospholipids and glycerides, among others. Glycerol joins with fatty acids to create glycerides, which can act as an energy source.
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How do you find the permanent dipole moment of a molecule?
The permanent dipole moment of a molecule can be calculated using the following steps:
Determine the bond dipolesDetermine the molecular geometryCalculate the net dipole momentWhat are dipoles?A dipole is an electrically charged object with a positive and a negative pole, such that the positive and negative charges are separated by some distance. A molecule with a net separation of positive and negative charges is referred to as a polar molecule or a molecular dipole.
Determine the bond dipoles: Identify the polar covalent bonds in the molecule and calculate the bond dipole moment for each bond by multiplying the bond order (number of shared electrons) by the electronegativity difference between the bonded atoms.Determine the molecular geometry: The molecular geometry determines the orientation of the bond dipoles and the arrangement of the atoms in the molecule. This information is needed to calculate the net dipole moment of the molecule.Calculate the net dipole moment: Using the bond dipoles and molecular geometry, calculate the net dipole moment of the molecule by adding the bond dipole moments vectorially. The magnitude of the net dipole moment is the permanent dipole moment of the molecule.Note: The permanent dipole moment is a measure of the net separation of positive and negative charges in a molecule, and it can be expressed in Debye units (D). It is a fundamental property of a molecule that determines its ability to interact with electric or magnetic fields.
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What are the units of k for each of the following? first-order reaction a. M1-1 s1-1 b. M2-2 s1-1 c. M s1-1 d. S1-1
The order of the reaction is 3.
For nth order reaction, the unit of the rate constant is liter
Litre^n−1 mol^1−n t^−1
Hence, n−1=2
n=1+2=3
The unit of rate constant for a reaction is liter²1/mol²1/t
Hence, the order of the reaction is 3.
What is the order of reaction?
The order of a reaction can be defined as the power dependence of the rate on the concentration of all reactants.For example, the rate of a first-order reaction depends only on the concentration of one species in the reaction.Some reaction order characteristics for a chemical reaction are given below.To know more about order of reaction, click the link given below:
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The electronic configuration of calcium is 2,8,8,2. So why we can't write it as 2,8,9,1?
It is due of this order of atomic orbital filling that calcium has an electrical configuration of 2, 8, 8, 2, rather than Your knowledge of atomic structure will increase.
What is an atom's atomic number?
An atomic number of an atom is determined by counting all the protons in its nucleus. It is symbolized by the letter "Z." A specific element's atoms each possess the same atoms since all of its protons are the same. Atomic numbers vary among atoms belonging to various elements.
How can you determine an element's atomic weight?
Discovering Relevant Information the atomic weight, please. Usually, the molecular weight is printed.
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what is a triglyceride? multiple choice question. a molecule consisting of three fatty acids bonded to a glycerol a three-carbon alcohol molecule a waxy lipid found in all body cells a fatty acid molecule containing three carbon-carbon double bonds
Option A – A triglyceride is a molecule consisting of three fatty acids bonded to a glycerol.
A triglyceride is a type of fat molecule made up of a glycerol molecule and three fatty acid molecules. Triglycerides are the most common type of fat found in food and are also stored in the body as a source of energy. When we eat foods high in fat, the body breaks down the triglycerides into their component fatty acids and glycerol and uses them as fuel. If we eat more fat than we can burn, the body stores the excess as body fat, which can contribute to obesity and other health problems if it accumulates in large amounts. Triglycerides play a role in the development of heart disease and other health problems, and their levels can be measured through a blood test. A high triglyceride level, combined with low levels of "good" cholesterol (HDL), can increase the risk of heart disease, stroke, and other health problems. Maintaining a healthy diet, getting regular exercise, and managing stress can help to keep triglyceride levels in check.
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how many oxygen atoms in cr(no3)3
Number of oxygen atoms in Cr(NO₃)₃ will be 9.
In Cr(NO₃)₃ the number of Cr atoms will be 1 and N atom will be 3. However, oxygen atoms will be 9.
Oxygen is the chemical element having symbol O and its atomic number will be 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that can readily forms oxides with most elements as well as with other compounds. Oxygen is the third-most abundant element in the universe after hydrogen and helium. At standard temperature and pressure, the two atoms of the element bind to form dioxygen, a colorless as well as odorless diatomic gas having formula O₂.
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Explain why a molecule can have bond dipoles but not have a molecular dipole.
The presence of polar bonds in a molecule does not imply the presence of a molecular dipole. Carbon dioxide and carbon tetrachloride, for example, have polar bonds but no net molecular dipole.
What is the difference between bond dipoles and molecular dipoles?Bond polarity is related to the individual polarity of the bond in a molecule, whereas molecular polarity is the sum of all the bond polarities in the molecule.
If a molecule is completely symmetric, the dipole moment vectors on each molecule cancel each other out, resulting in a nonpolar molecule.
Thus, a molecule can have bond dipoles but not have a molecular dipole.
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Molecular polarity question
Explain why a molecule can have bond dipoles but not have a molecular dipole.
The presence of polar bonds in a molecule does not imply the presence of a molecular dipole. Carbon dioxide and carbon tetrachloride, for example, have polar bonds but no net molecular dipole.
What is the difference between bond dipoles and molecular dipoles?Bond polarity is connected to each bond's particular polarity in a molecule, but molecular polarity is the total of all the bond polarities in the molecule. This is the difference between bond dipoles and molecular dipoles.
A molecule will become nonpolar if it is entirely symmetric, as the dipole moment vectors on each molecule will cancel each other out.
Thus, a molecule can have bond dipoles but not have a molecular dipole.
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if we increase the temperature of the vessel to 450 k at constant volume, what would the pressure inside the vessel be?
If we increase the temperature of the vessel to 450 k at constant volume, 15 atm would be the pressure inside the vessel. Therefore, the correct option is option D.
In chemistry, pressure is the force that a gas or liquid applies to the container's walls. It happens as a result of molecules of a gas or liquid slamming into the surface of the container. One of the gas laws that explains the relationship between pressure and temperature of a gas at constant volume is Gay-Lussac's Law, sometimes referred to as the pressure-temperature law. It has the name of Joseph Louis Gay-Lussac, a French chemist who developed the law at the beginning of the 19th century.
P1/T1 = P2/T2
P2 = (P1 × T2)/T1
P2 = (10 atm ×450 K) / 300 K
P2 = 15 atm
Therefore, the correct option is option D.
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Your question is incomplete but most probably your full question was,
We are studying the properties of a 10 L vessel of an ideal gas at 300 K and 10 atm of pressure inside. We can fix the volume or the pressure of the vessel as we like. If we increase the temperature of the vessel to 450 K at constant volume, what would the pressure inside the vessel be?
Group of answer choices
10 atm
5 atm
20 atm
15 atm
The body of a victim is discovered in the woods during a week with unusually cold weather. What should a forensic scientist consider when estimating the rate of decomposition of the body tissues of the victim?
The temperature would not need to be considered.
The tissues decompose at a slower rate at lower temperatures.
The tissues decompose at a faster rate at lower temperatures.
The tissues would not decompose at all at a lower temperature.
Answer:
The tissues decompose at a slower rate at lower temperatures.
Explanation:
This is my best guess but I think answer is tissue decompose slower rate at low temperature. This is why we in medicine we store specimens at very low temperature so we can do research on it at a later time but they eventually go bad. Low temperature slow down enzymes and proteins thus breakdown is slower rate.
an example of a chemical change is group of answer choices boiling alcohol grinding coffee beans. an ice cube melting in a drink digesting a pizza coffee spilled on a shirt
B: "Digesting a pizza" is an example of a chemical change.
Chemical changes occur when chemical reactions take place and result in the formation of new substances with different chemical and physical properties. The process of digestion of food involves various chemical reactions such as hydrolysis, oxidation, and reduction, which break down complex food molecules into simpler compounds that can be absorbed and used by the body. The original pizza molecules are transformed into new substances and this constitutes a chemical change.
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What is potassium iodide formula used for?
Potassium iodide is used to avoid the loss of iodine due to oxidation from salts
What are compounds ?
A compound is a substance consisting of two or more elements chemically combined in a fixed ratio. They differ from mixtures consisting of two or more substances physically mixed without chemical bonding. Compounds have their own physical and chemical properties that differ from those of individual elements. For example, the compound water (H2O) has different properties (boiling point, density, solubility, etc.) than its components hydrogen (H2) and oxygen (O2).
Compounds are formed by chemical reactions in which atoms of different elements combine to form new substances. The formation of a compound can be represented by a chemical formula that indicates the type and number of atoms in the compound.
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______ is the spacing between character pairs.
answer choicesO Tracking
O Kerning
O Serif
Kerning is the spacing between individual letters or characters.
The distance between individual letters or characters is known as kerneling. In contrast to tracking, which modifies the spacing between each letter of a word in equal increments, kerning is concerned with the aesthetics of type, producing legible writing that is appealing to the eye.
Character spacing and kerning differ significantly in that character spacing is utilized between specific pairs of characters as specified in the typeface, and letter spacing is independent of the text it spaces.
Kerning is the process of manually adjusting the distance between two particular glyphs. A kerning pair is the same adjustment, but the type designer chooses it; the instructions are included in the font file itself.
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Is the subscript "1" usually written or understood?
Responses
A writtenwritten
B shownshown
C understoodunderstood
Is the subscript "1" usually understood. Therefore, option C is correct.
What is subscript ?A subscript is a character that is printed slightly below and to the side of another character, typically a letter or number. Subscripts are frequently used in chemical equations. A scientist would write the water formula, H2O, with the 2 lower and smaller than the letters on either side.
Subscripts indicate the proportion of atoms of various elements in the compound. Because the molecule contains four hydrogen atoms, the subscript 4 follows the symbol for hydrogen. When a symbol in a formula lacks a subscript, the number 1 is understood.
Thus, option C is correct.
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How do you calculate heating and cooling curve?
The equations q = mcT, whereby m is the test mass, c is the absolute temperature, and T is the change in temperature, may be used to quantify the amount of hot air received or dissipated by a test (q).
The mass simple answer is what?A thing's mass is just how much matter it has. Something will weigh more the more matter it includes. For illustrate, an elephant pounds more than a mouse because it has more stuff.
In physics, what do mass and mass mean?A measurement of an object's kinetic attribute, or how much matter it contains, is the entity's mass. The force of gravity falling on an item is measured by its weight.
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1. The reaction C2H4 + HBr to C2H5Br is carried out in continuous reactor. The product stream is analysed and found to contain 50 mole % C2H5Br and 33. 3% Br. The feed to the reactor contains only C2H4 and HBr. Calculate the fractional conversion of limiting reactant and the percentage by which the other reactant is in excess
In a continuous reactor, the materials are transported as a stream that is always running, allowing the reactants to be continuously supplied into the reactor and producing a stream of product in the process.
What is the identification of limiting reactant?Along with that, it ought to be necessary to know the mole counts of unreacted species. The amount of products created from each reactant can be compared in order to determine the limiting reactant.
When producing huge amounts of chemicals, a continuous reactor—also called a flow reactor—is employed.
Therefore, The mole number of the reactant and the finished product should be computed in order to determine the limiting reactant in a chemical reaction.
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water molecules stick to other water molecules because
A cube of moist soil has a water content of 25%, a specific gravity of solids of 2.7, a total weight of 215 lbs, and a volume of 2 ft. Calculate the saturation, total unit weight, void ratio and porosity.
The saturation is 33%, the total unit weight is 107.5 lbs/ft^3, the void ratio is 0.43 and the porosity is 30%.
To calculate the saturation, we need to find the weight of water in the soil, which is 25% of the total weight of 215 lbs. So, the weight of water is 25/100 * 215 lbs = 53.75 lbs.
Next, we find the weight of solids in the soil, which is 215 lbs - 53.75 lbs = 161.25 lbs.
The saturation (S) is the ratio of the weight of water to the weight of solids in the soil and is calculated as follows:
S = 53.75 lbs / 161.25 lbs = 0.33 or 33%.
The total unit weight of the soil can be calculated using the following formula:
γ = (W_water + W_solids) / V
where W_water is the weight of water, W_solids is the weight of solids, and V is the volume of the soil.
Substituting the values, we get
γ = (53.75 lbs + 161.25 lbs) / (2 ft^3) =
= 215 lbs / (2 ft^3) = 107.5 lbs/ft^3
The void ratio (e) is the ratio of the volume of voids in the soil to the volume of solids in the soil, and can be calculated as follows:
e = V_voids / V_solids = (V - V_solids) / V_solids = (V - W_solids / γ_solids) / (W_solids / γ_solids)
Substituting the values, we get
e = (2 ft^3 - 161.25 lbs / 2.7) / (161.25 lbs / 2.7) = 0.43
Finally, the porosity (n) is the ratio of the volume of voids in the soil to the total volume of soil and is given by:
n = V_voids / V = e / (1 + e) = 0.43 / (1 + 0.43) = 0.43 / 1.43 = 0.30 or 30%.
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What is the ideal barometric pressure for humans?
According to Vanos, barometric pressure of 30 inches of mercury is the most comfortable for people (inHg). The risk of a heart attack increases as it climbs to 30.3 inHg or higher or falls to 29.7 inHg or lower.
High or low barometric pressure—which is worse?Inferring calm weather from higher pressure, whereas bad weather from low barometric pressure. Barometric pressure variations are used by meteorologists and sailors to forecast weather conditions.
What barometric pressure level qualifies as low?High pressure is often characterized by a barometer measurement of over 30.20 inHg and is linked to calm, clear skies. Low pressure is commonly defined as a barometer value of less than 29.80 inHg, and low pressure is linked to warm air and thunderstorms.
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why is hcl used instead of plain deionized water in p-phenetidine in amide synthesis of acetophenetidin?
HCl is used instead of plain deionized water in p-phenetidine in amide synthesis of acetophenetidin because HCl's polarity contributes to a reaction driven to the right, it is used for the acid-base reaction rather than water. It protonates the amine group, allowing it to dissolve easily.
What is acid-base reaction ?An acid-base neutralization reaction is represented as a double-replacement reaction in this traditional representation. For example, the reaction of hydrochloric acid (HCl) with sodium hydroxide (NaOH) solutions yields a solution of sodium chloride (NaCl) and a few extra water molecules.
When acid and base react, they produce salt and water. Water and salt are both neutral, which means that when acid and base react, they neutralize each other. As a result, it is known as a neutralization reaction.
Thus, HCl's polarity contributes to a reaction driven to the right.
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What is the chemical formula of sodium phosphate?
The salt's chemistry is sodium phosphate. Na₃PO₄ Na3PO4 is the chemical name for sodium phosphate, and its molecular weight is 163.94 g/mol.
Is sodium phosphate N3PO4?
Sodium phosphate: Sodium phosphate, which has the chemical formula phospho soda Radiologists are familiar with Na3PO4 since it is frequently used as a cleanser before a double distinction barium enema.
Why is the sodium phosphate formula?
Na3PO4 is the chemical name for sodium phosphate, and its molecular weight is 163.94 g/mol.
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What does soluble and insoluble mean in chemistry?
Solids that are soluble in a liquid are said to be soluble solids. Solids that cannot dissolve in water are known as insoluble solids.
What is the meaning of soluble or insoluble?I Compounds that disintegrate in a particular liquid to form a solution are known as soluble solids. I Solids that cannot dissolve in the water are referred to as insoluble solids. These insoluble substances either floating or sink when added to water, but they do not mix with that as well.
What is insoluble water?Something like this that won't disintegrate in a solvent is said to be insoluble. Rarely does a solute not dissolve at all. However, many compounds are not very soluble. Examples include sand, lipids, timber, metals, and plastic.
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What is the formal charge on the oxygen atom in the structure below?
a. −
1
.
b. 0
.
c. +
1
.
d. +
2
.
The difference between the number of valence electrons an isolated atom of that element would have and the number of electrons it actually has in the molecule is defined as the formal charge on that atom in the molecule.
The formal charge is computed as follows:
Formal Charge = (Number of lone pair electrons + Number of bonding electrons / 2) Valence Electrons
The oxygen atom has six valence electrons in the structure you provided, four of which are bonding electrons and two of which are lone pair electrons. The formal charge on the oxygen atom is calculated as follows:
Formal Charge = 6 minus (2 + 4 / 2) = 6 minus (2 + 2) = 6 minus 4 = 2 minus 4 = -2
As a result, the oxygen atom in the structure has a formal charge of -2
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PLEASE HELP ME
A. 60.6g CO2
B. 30.3g CO2
C. 121.2g CO2
Theoretical yield of water is 50.4g. Theoretical yield of a reaction is achievable if the limiting reactant has been identified.
What is limiting reactant?In a chemical reaction, the limiting reactant, also known as the limiting reagent, controls how much product is produced. Calculating the theoretical yield of a reaction is achievable if the limiting reactant has been identified.
Because elements and compounds in an equilibrium chemical equation react in accordance with their mole ratios, there must be a limiting reactant.
2H[tex]_2[/tex] + O[tex]_2[/tex] [tex]\rightarrow[/tex] 2H[tex]_2[/tex]O
moles of H[tex]_2[/tex] = 11 gram/ 2=5.5moles
moles of O[tex]_2[/tex] = 45gram/32=1.40moles
O[tex]_2[/tex] is the limiting reagent
moles of water = 2.80moles
theoretical yield of water= 2.80×18=50.4g
Therefore, theoretical yield of water is 50.4g.
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How should spill materials be discarded?
Cleaning supplies for spills should always be disposed of as hazardous trash. Therefore, it is necessary to store and package items like sorbent materials and cleaning supplies for the disposal of hazardous waste.
What is equipment, briefly?The term "equipment" most frequently refers to a group of items or other things that are regularly employed to accomplish a certain goal. Equipment needs vary depending on the work.
Is there a term for equipment?The plural form of the word equipment is absent. There is no term "equipments," it is only used in the singular, and it goes with a singular verb. There are about 100 common words in this category, which are referred to as "noncount nouns" or "mass nouns."
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what is the anion in koch2ch3?
The anion present in the compound , KOCH₂CH₃ is CH₃CH₂O⁻ .
The ions means that if the atom or the element carry the positive charge means it looses the electrons and form the cation and If the element or the compound carry the negative charge means that it gains the electrons and make the anion.
The compound is : KOCH₂CH₃
The cation present = K⁺
The anion cation = CH₃CH₂O⁻
The ionic compound is formed between the negatively charge anion and the positively charged cation. The ionic compound is formed by the complete transfer of the electrons.
Thus , the anion CH₃CH₂O⁻ is present in the compound KOCH₂CH₃.
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Consider 5.00 L of a gas at 365 mmHg and 20. ∘C . If the container is compressed to 2.70 L and the temperature is increased to 33 ∘C , what is the new pressure, P2 , inside the container? Assume no change in the amount of gas inside the cylinder.
Consider 5.00 L of a gas at 365 mmHg and 20.∘C . If the container is compressed to 2.70 L and the temperature is increased to 33 °C, the new pressure, P2 , inside the container is 563.372 mm Hg.
What is ideal gas law ?The ideal gas law, also known as the general gas equation, is the state equation for a hypothetical ideal gas. Although it has several limitations, it is a good approximation of the behavior of many gases under many conditions.
Apply ideal gas law
P1V1/T1 = P2V2/T2
365 × 5 / 293 = P2 × 2.70 / (33+273)
P = 365 × 5 /293 /2.70 × (33+273)
P = 563.372 mm Hg
Thus, the new pressure, P2 , inside the container is 563.372 mm Hg.
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Cl2 + Na2S + 2NaCl + S
The percent yield of sulfur when 71. 0 g of Cl2 is reacted in
excess Na2S solution is 73. 0 %.
What is the actual mass of sulfur yielded by this reaction?
The actual mass of sulfur yielded by this reaction is 23.4 g
The quantity of moles of a product created in relation to the amount of reactant consumed during a chemical reaction is measured in chemistry as yield, also known as reaction yield. The actual yield is calculated as the theoretical yield multiplied by 100 to get the percent yield.
To find the yield percent we use the equation: percent yield = actual yield/theoretical yield x 100
The theoretical yield for S is as follows:
71. g Cl2 x 1 mol Cl 2 x 1 mol x 32.1 g = 32.1 g S
71 g Cl 1 mol S
Percent yield = actual yield/theoretical yield x 100
Actual yield = theoretical yield x percent yield
Actual yield = 32.1 X 73 % = 23.4 g S
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A 5.0 liter container at 20.0oC has 4 gases pumped in. The total pressure of the gases is 4.09 atm. If the pressure of the first gas is 1.00 atm, and the pressure of the second gas is 0.940 atm, the pressure of the third gas is 0.870 atm, what is the pressure of the fourth gas in atmospheres?
The pressure of the fourth gas in atmospheres is1.28 atm.
What does a gas's pressure mean in physics?
The force created when gas particles collide with the wall of their container is known as gas pressure. Force is applied to a region to create pressure. The force that a gas applies to a particular area is known as gas pressure. The amount of force applied to a certain region is referred to as pressure. Gases produce pressure, or force per unit of area. In addition to torr, atmosphere, and bar, the pressure of a gas can also be stated in many additional SI units, such as pascal or kilopascal.
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