There are approximately 3.8 x [tex]10^{6}[/tex] g of Sodium Chloride in 65 liters of the solution.
The number of grams of NaCl in 65 liters of a solution can be determined by using the concentration of the solution. Since the concentration of NaCl is not given, it's not possible to determine the exact number of grams of NaCl in 65 liters of the solution.
However, if we assume that the solution is an aqueous solution of NaCl, we can make an estimate using the density of water. The density of water is approximately 1 g/mL, so 65 liters of water is approximately 65 × 1000 = 65000 mL of water. This means that if the concentration of NaCl in the solution is 1 M, then there would be 65000 mL × 1 M = 65000 moles of NaCl in the solution. Since the molar mass of NaCl is 58.44 g/mole, this would correspond to 65000 moles x 58.44 g/mole = 3.80 × [tex]10^6[/tex] g of NaCl.
This is a rough estimate, and the actual number of grams of NaCl in 65 liters of solution would depend on the actual concentration of NaCl in the solution. However, if we use 2 significant figures, we can estimate that there are approximately 3.8 × [tex]10^6[/tex] g of NaCl in 65 liters of the solution.
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what was the industrial revolution?
Answer:The Industrial Revolution transformed economies that had been based on agriculture and handicrafts into economies based on large-scale industry, mechanized manufacturing, and the factory system.
Explanation:
if the external pressure were to decrease (for example at high elevation), how would this effect the boiling point of a pure liquid?
As atmospheric pressure decreases, water boils at decrease temperatures. At sea level, water boils at 212 °F. With every 500-ft boom in elevation, the boiling factor of water is decreased through simply beneath neath 1 °F.
At 7,500 ft, for example, water boils at approximately 198 °F. When the strain above a liquid is reduced, the vapor strain had to result in boiling is likewise reduced, and the boiling factor of the liquid decreases. The strain of gas above a liquid impacts the boiling factor. In an open gadget that is known as atmospheric strain. The extra the strain, the greater power required for drinks to boil, and the better the boiling factor. The boiling factor of a liquid will increase with boom in strain. Since a liquid vaporizes whilst molecules circulate quicker and farther aside however even as growing strain, you're making use of an outside pressure to maintain molecules in the direction of every other.
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after the dna duplicates, how many chromosomes are present in the nucleus?
Answer:
Once mitosis is complete, the cell has two groups of 46 chromosomes, each enclosed with their own nuclear membrane. The cell then splits in two by a process called cytokinesis, creating two clones of the original cell, each with 46 monovalent chromosomes.
question content area if the original sample of zn had a mass of 1.4 g, what mass of zncl2 can be produced in the reaction?
2.9 g of mass of Zn can be produced in the reaction
The mass of ZnCl2 that can be produced in a reaction depends on the stoichiometry of the reaction. If the original sample of Zn had a mass of 1.4 g, we can use the balanced chemical equation for the reaction to determine how much ZnCl2 can be produced.
For example, if the reaction is Zn + HCl -> ZnCl2 + H2, the stoichiometry of the reaction is 1:1, meaning that for every mole of Zn, 1 mole of ZnCl2 can be produced. We can use the molar mass of Zn (65.38 g/mol) to convert the mass of Zn to moles, and then use the stoichiometry to calculate the mass of ZnCl2.
It is important to note that the actual amount of ZnCl2 produced may be different from the theoretical amount due to factors such as incomplete reaction, impurities, and loss of product during purification. Additionally, the molar mass of ZnCl2 should be used to convert moles to mass for the final answer.
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What separates a compound from a molecule?
A molecule refers to a basic unit of a substance that is composed of two or more atoms bonded together, while a compound refers to a substance made up of two or more different elements chemically combined in a fixed ratio.
A molecule is a basic unit of a chemical substance that consists of two or more atoms bonded together. It is the smallest particle of a substance that retains the chemical properties of the substance. A molecule can be composed of elements of the same type (such as O2, a molecule of oxygen), or elements of different types (such as H2O, a molecule of water).
A compound, on the other hand, is a substance made up of two or more different elements combined chemically in a fixed ratio. The elements in a compound are combined through chemical bonds, forming a new substance with unique properties that are different from those of the individual elements. In other words, a compound is a type of molecule that is composed of elements from two or more different types.
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why is a saturated fatty acid that is composed of 18 carbons slightly less hydrophobic than a hydrocarbon that is composed of 18 carbons?
A saturated fatty acid that is composed of 18 carbons is slightly less hydrophobic than a hydrocarbon that is composed of 18 carbons because the fatty acid has at least one double bond in its carbon chain, which reduces its hydrophobicity.
What is hydrophobic ?Hydrophobic is a term used to describe a substance or material that repels water. It is a physical property that is caused by molecules that have a strong aversion to water molecules. Hydrophobic molecules are usually characterized by having an uncharged, nonpolar surface, which makes them unable to form hydrogen bonds with water molecules. Common substances that are hydrophobic include oil, wax, and other organic compounds.
The double bond adds a polar group to the molecule, which can interact with water molecules and partially dissolve the fatty acid in water. Hydrocarbons, on the other hand, are composed entirely of non-polar C-C and C-H bonds, which are unable to interact with water, making them more hydrophobic.
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Lewis dot structure for CBry
Lewis dot structure for CBr₄ can be seen in the figure.
The Lewis structure is the writing of the atomic symbol along with the valence electrons. Valence electrons are marked with dots or small crosses. Composed of one C atom and 4 Br atoms. The electron configuration of the C atom and the Br atom is as follows:
₆C= 2 4
₃₅Br = 2 8 18 7
₃₅Br = 2 8 18 7
₃₅Br = 2 8 18 7
₃₅Br = 2 8 18 7
The C atom needs 4 more electrons to reach stability while the Br atom needs one more electron to achieve stability. So that the C atom will donate one electron to each Br to be used together and each Br donates one electron to C to be used together. In writing the Lewis structure, the C atom serves as the central atom surrounded by Br atoms.
The correct question:
Lewis dot structure for CBr₄?
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what is the percentage by mass of hydrogen (H) in lithium hydroxide (LiOH)
41.7% is the percentage by mass of hydrogen (H) in lithium hydroxide (LiOH). The solution mixture is frequently defined in terms of mass percentage.
What is percentage by mass?The mass percent might be used to denote a degree. Furthermore, it defines the element during a specific mixing. The solution mixture is frequently defined in terms of mass percentage. It represents the amount of solute contained in a mass m of solution.
The quantity of solutes can be stated in terms of mass or moles. We will study the percent by mass formula with numerous solved numerical examples in this post.
Mass percent = (component’s mass ÷ total mass) x 100%
= (1/ 23.95)x 100%
= 41.7%
Therefore, 41.7% is the percentage by mass of hydrogen (H) in lithium hydroxide (LiOH).
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The combustion of a sample of butane, C4H10(lighter fluid), produced 2.46 grams of water.
2C4H10 + 13O2 = 8CO2 + 10H2O
a) How many moles of water formed?
b) How many moles of butane burned?
c) How many grams of butane burned?
d) How mush oxygen was used up in moles?
e) How much oxygen was used in grams?
A. The mole of water formed is 0.137 mole
B. The moles of butane burned is 0.027 mole
C. The mass of butane burned is 1.566 g
D. The moles of oxygen used up is 0.178 mole
E. The mass (in grams) of oxygen used up is 5.696 g
A. How do I determine the mole of water formed?We can obtain the mole of water formed as shown below:
Molar mass of water = 18 g/molMass of water = 2.46 gramsMole of water =?Mole = mass / molar mass
Mole of water = 2.46 / 18
Mole of water = 0.137 mole
B. How do I determine the mole of butane buned?
The mole of butane burned can be obtained as follow:
2C₄H₁₀ + 13O₂ -> 8CO₂ + 10H₂O
From the balanced equation above,
10 moles of H₂O were obtained from 2 moles of butane, C₄H₁₀
Therefore,
0.137 mole of H₂O will obtain from = (0.137 × 2) / 10 = 0.027 mole of butane, C₄H₁₀
Thus, the mole of butane, C₄H₁₀ is 0.027 mole
C. How do I determine the mass of butane?The mass of butane burned can be obtained as illustarted below:
Mole of butane = 0.027 moles Molar mass of butane = 58 g/mol Mass of butane =?Mole = mass / molar mass
Cross multiply
Mass = Mole × molar mass
Mass of buatne = 0.027 × 58
Mass of butane = 1.566 g
D. How do i determine the mole of oxygen used up?The mole of oxygen used up can be obtained as follow:
2C₄H₁₀ + 13O₂ -> 8CO₂ + 10H₂O
From the balanced equation above,
10 moles of H₂O were obtained from 13 moles of oxygen, O₂
Therefore,
0.137 mole of H₂O will obtain from = (0.137 × 13) / 10 = 0.178 mole of oxygen, O₂
Thus, the mole of oxygen, O₂ is 0.178 mole
E. How do I determine the mass of oxygen?The mass of oxygen used up can be obtained as illustarted below:
Mole of oxygen = 0.178 moles Molar mass of oxygen = 32 g/mol Mass of oxygen =?Mole = mass / molar mass
Cross multiply
Mass = Mole × molar mass
Mass of oxygen = 0.178 × 32
Mass of oxygen = 5.696 g
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in the transition state for this compound, the negative charge is divided between the leaving cl atom and the incoming br atom. based on the hammond postulate, how would you expect that charge to be distributed between the two atoms?
Bimolecular nucleophilic substitution (SN2) reactions are concerted reactions in which both the nucleophile and the substrate are involved in the rate-limiting step. Bonds are broken and new bonds are formed in a single step thanks to the coordinated nature of this reaction. In order to comprehend this reaction, it is essential to examine the transition state, which replicates the concerted rate-limiting step.
What is Hammond postulate?
The geometrical structure of the transition state of an organic chemical reaction is described by Hammond's postulate (also known as the Hammond-Leffler postulate), a physical organic chemistry hypothesis.
According to the postulate, which George Hammond first put forth in 1955, if two states, such as a transition state and an unstable intermediate, happen concurrently during a reaction process and have nearly the same amount of energy, their interconversion will only cause a slight reorganization of molecular structures.
Bimolecular nucleophilic substitution (SN2) reactions are concerted reactions in which the rate-limiting step involves both the nucleophile and the substrate. Due to the concerted nature of the reaction, the bonds are broken and new bonds are formed all in one step. It is crucial to examine the transition state, which resembles the concerted rate-limiting step, in order to interpret this reaction. The halide (L) bond is broken while the nucleophile forms a new bond with the carbon in the "Depiction of SN2 Reaction" figure.
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if you had used a diprotic acid with a higher ka value, how would that have affected the volume of naoh required to reach the equivalence point (if at all)?
If you had used a diprotic acid with a higher Ka value, the volume of NaOH required to reach the equivalence point would have been higher.
This is because a higher Ka value indicates a stronger acid, and so more NaOH is needed to neutralize the acid. The amount of NaOH needed to reach the equivalence point would be directly proportional to the Ka value of the acid.
To accurately determine the endpoint, indicators such as phenolphthalein or methyl orange can be used in order to detect the change in color as the endpoint is reached. Finally, the moles of acid can be calculated from the volume of NaOH added to reach the equivalence point, as the moles of acid are equal to the moles of NaOH added.
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convert 70 mmhg and 120 mmhg into both si and psi pressure units. in blood pressure readings, are these absolute pressure or gauge pressure? how do they compare with atmospheric pressure (compare 1 atm to si, psi, and mmhg pressure units)?
70 mmHg will be converted to 9.333 kpa pressure SI unit and 20 mmHg will be converted to 16kpa pressure SI units.
Blood pressure is measured in mmHg because mercury is used in the manufacturing of thermometers, so it is convenient to measure the pressure by rise in height of mercury in the thermometer.
The pressure measured by the thermometer is always gauge pressure, given by:
P(gauge) = P(absolute) - P(atmospheric)
Absolute pressure for 70 mmHg is 110.658kpa whereas absolute pressure for 120 mmHg is 117.325kpa
70 mmHg and 120 mmHg can be converted into SI pressure units as:
760 mmHg=101.325kpa
70 mmHg= 70 ×101.325/760
=9.333kpa
Thus, 70 mmHg will be 9.333kpa
∴120 mmHg=120 ×101.325/760
=16kpa
Thus, 120 mmHg will be 16kpa
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in the atmosphere of the sun, which of these elements are least likely to be ionized? group of answer choices hydrogen and helium helium and calcium calcium and many heavier atoms unobtainium
The two elements that are least likely to be ionized in the atmosphere of the sun are hydrogen and helium.
Hydrogen and helium are the two lightest elements and have the lowest ionization energies. This means that they require the most energy to be ionized and they are very stable in the sun’s atmosphere. In contrast, calcium and many heavier atoms have higher ionization energies and are more likely to be ionized in the sun’s atmosphere. Unobtainium is a fictional element and does not exist, so it is not possible to answer this question for it.
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if 156 ml of wet h 2 is collected over water at 24 degrees c and a barometric pressure of 737 torr, how many grams of zn have been consumed? (the vapor pressure of water is 22.38 torr.)
If 156 ml of wet h 2 is collected over water at 24 degrees c and a barometric pressure of 737 torr then about 0.391 grams of zinc. is consumed.
Utilizing the idea of gas laws, specifically Dalton's Law of Partial Pressures, which states that the total pressure of a gas mixture is equal to the sum of the barometric pressure partial pressures of the various gases in the mixture, we may solve this problem.
The wet H2 gas that is gathered over the water in this instance can be thought of as a combination of two gases: H2 gas and water vapour. The total pressure of this mixture, which was measured at 737 torr, must be converted into partial pressure of the H2 gas in order to calculate the amount of Zn that was consumed.
The partial pressure of the water vapour must first be determined using the water vapour pressure.the pressure at 24 degrees Celsius, or 22.38 torr. The following equation can be used to calculate the partial pressure of water vapour:
Water vapour pressure is determined by multiplying it by the ratio of the volume of water to the volume of gas collected.
We might presume that the volume of water collected is insignificant in comparison to the 156 ml of gas that was collected. Therefore:
Water vapour partial pressure is equal to 22.38 torr times (0.156 L / 0.156 L) to equal 22.38 torr.
The partial pressure of the H2 gas can then be determined using Dalton's Law of Partial Pressures:
Total pressure minus the partial pressure of water vapour equals partial pressure of H2 gas.
H2 gas partial pressure is equal to 737 torr minus 22.38 torr, or 714.62 torr.
now that we Assuming that the reaction between Zn and HCl that produced the H2 gas proceeded to completion, use the ideal gas law to compute the quantity of H2 gas that was produced. The reaction's chemically balanced equation is as follows:
ZnCl2 + H2 = Zn + 2HCl
What is the ideal gas law?
PV = nRT
where R is the gas constant, n is the number of moles, P is the pressure, V is the volume, and T is the temperature in Kelvin. To determine the amount of moles, we can rearrange this equation as follows:
n = PV / RT
We must change the temperature to Kelvin, the volume to litres, and the
pressure to atmospheres:
714.62 torr/760 torr/atm = 0.939 atm is the pressure.
Volume equals 0.156 L or 156 ml per one litre.
24 degrees Fahrenheit degrees Celsius plus 273.15 equals 297.15 K.
R is 0.08206 L atm/mol K, which is the gas constant. Therefore:
n is equal to (0.939 atm) x (0.161 L) / (0.08206 L atm/mol K) x (297.15 K) = 0.00599 mol.
The balanced chemical equation states that 1 mole of zinc will result in 1 mole of hydrogen gas. This means that 0.00599 mol of zinc was also used.
Using the molar mass of zinc, which is 65.38 g/mol, we can finally determine the mass of zinc that was consumed:
Zn consumption mass equals 0.00599 mol x 65.38 g/mol = 0.391 g
Therefore, the process used up about 0.391 grammes of zinc.
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A compound has a percent composition of 24.74% potassium, 34.76% manganese, and 40.50% oxygen. Assuming that the mass of the compound is 100g what is the compounds empirical formula
A compound has a percent composition of 24.74% potassium, 34.76% manganese, and 40.50% oxygen. The compound's empirical formula is KMnO₄.
What is empirical formula ?The term empirical formula is defined as a chemical compound is the simplest whole number ratio of atoms present in a compound.
Step 1:
Give:
Mass of the compound is 100 grams
24.74% = potassium
Molar mass of K = 39.10 g/mol
34.76% = manganese
Molar mass of Mn= 54.94 g/mol
40.50% = oxygen
Molar mass = 16.00 g/mol
Step 2:
Calculate moles of potassium
Moles K = mass K / molar mass K
Moles K = 24.74 grams / 39.10 g/mol
Moles K = 0.6327 moles
Step 3:
Calculate moles of Mn
Moles Mn = 34.76 grams / 54.94 g/mol
Moles Mn = 0.6327 moles
Step 4:
Calculate moles of O
Moles O = 40.50 grams / 16.00 g/mol
Moles O = 2.53
Step 5:
Calculate the mol ratio
We divide by the smallest amount of mol
K: 0.6327 / 0.6327 = 1
Mn: 0.6327/0.6327 = 1
O: 2.53 / 0.6327 = 4
Then the empirical formula is KMnO₄.
Thus, the compound's empirical formula is KMnO₄.
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who has primary responsibility for making sure that safety policies are being followed in the lab - you, your ta, or general chemistry prep room staff?4
The primary responsibility for making sure that safety policies are being followed in the lab is by your TA.Students can discover methods employed by scientists in their field and get hands-on experience with course content through labs.
You must evaluate the requirements for the experiment with your supervising professor as a lab TA, create concise explanations, and pose questions to get students thinking. Additionally, it is your duty to guarantee adherence to safety regulations.
When you are directly in charge of 25–30 laboratory students' health and wellbeing, safety is the most crucial concern. You should show correct lab methods over the first few weeks of the quarter, including decanting and mixing liquids, handling glassware, setting up a workspace, utilizing burners, and using additional tools like gloves, goggles, face shields, etc.
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describe how the labels indicate that one tablespoon of mayonnaise contains more energy than one tablespoon of ketchup
The label indicate that ne tablespoon of mayonnaise contains more energy than one tablespoon of ketchup because it contains high amounts of fat.
Calories are the amount of energy obtained from food and drink which is then used by the body for daily activities. Mayonnaise is a sauce made from eggs and vegetable oil, so it has high fat and high calories. Because in 1 gram of fat there are 9 kcal. which means fat is high in calories. While in 1 tablespoon there are 57 calories in Mayonnaise.
Ketchup or tomato sauce can be made from fresh tomatoes or from tomato paste mixed with various other spices. Therefore tomato sauce only contains vitamins A and C from tomatoes and does not contain fat and is low in calories. In one tablespoon there are 15 calories in ketchup or tomato sauce.
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22. (10 pts) if 12.0 ml of 1.34 m sodium hydroxide is required to neutralize 35.00 ml of a sulfuric acid solution, what is the molarity of the sulfuric aci
The sulfuric acid has a molarity of 0.46 M.
Molarity: What is it?
The number of moles of solute per liter of the given solution is measured using this unit of concentration. We must first determine how many moles of sulfuric acid were neutralized by the sodium hydroxide solution in order to calculate the molarity of the sulfuric acid solution. Sulfuric acid and sodium hydroxide react as follows:
Na2SO4 + 2H2O = NaOH + H2SO4
The number of moles of sodium hydroxide and sulfuric acid are equal because one mole of sodium hydroxide reacts with one mole of sulfuric acid.
We can figure out how many moles of sodium hydroxide there are since we know the solution's volume and concentration:
NaOH has a molecular weight of 16.08 moles (12.0 mL x 1.34 M).
The moles of sodium hydroxide can then be used to calculate the moles of sulfuric acid in the reaction by dividing the moles of sodium hydroxide by the stoichiometric coefficient (1) of sulfuric acid:
16.08 moles of H2SO4 are equal to 1.05 moles of NaOH.
Finally, we can use the volume of the sulfuric acid solution and the number of moles of sulfuric acid.
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how many grams of sodium nitrate would you need to make 100 ml of a saturated solution at 25 degrees c
36.4 grams of sodium nitrate would you need to make 100 ml of a saturated solution at 25 degrees c
To make a saturated solution of sodium nitrate at 25 degrees c, you would need to measure out 36.4 grams of sodium nitrate for every 100 ml.
This is calculated using the solubility of sodium nitrate at 25 degrees c, which is 0.364 g/ml.
To make a saturated solution, multiply this value by the desired volume of solution, which in this case is 100 ml.
This gives us 36.4 grams of sodium nitrate.
ideal gas law which states that the pressure of a gas is equal to the number of moles of the gas multiplied by its temperature and the universal gas constant, divided by the volume of the container.
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What mass of phosphorus is in 75.0 g of calcium
monohydrogen phosphate?
Answer:The mass of phosphorus in 75.
0 g of calcium monohydrogen phosphate is 32.0 g.
Explanation:
This is because calcium monohydrogen phosphate is a compound that is composed of calcium cations (Ca2+) and monohydrogen phosphate anions (H2PO4-). The chemical formula for this compound is Ca(H2PO4)2. Since phosphorus has an atomic weight of 31 g/mol, and calcium monohydrogen phosphate contains two phosphorus atoms for each mole, the mass of phosphorus in 75.0 g of calcium monohydrogen phosphate is 32.0 g.
explain how the same chemical signal can have one effect on cell-type a, a different effect on cell-type b and no effect on cell-type c.
A chemical signal can have different effects on different types of cells due to the different receptors and signaling pathways present on each cell type.
What is chemical signal ?Chemical signals are molecules used for communication between organisms. They are emitted by one organism and are detected by another organism, which then responds in some way. Chemical signals can be used for a variety of purposes, including finding mates, repulsing competitors and predators, establishing territories, and coordinating group activities. Examples of chemical signals include hormones, pheromones, and volatile organic compounds.
Cell-type A may have a receptor for the chemical signal that is linked to a particular signaling pathway, causing it to activate a certain response. Cell-type B may have a different receptor for the same chemical signal, which is linked to a different signaling pathway, leading to a different response. Cell-type C may not have any receptor for the chemical signal, meaning that the signal cannot bind to the cell and therefore has no effect.
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what traits or traits did the plants in the F generation exhibit when you think of the traits of the parent plants why is the result surprising.
The traits that the offspring got were taken from the parents.
How do offspring's get traits?Offspring get traits from their parents through the process of inheritance. Traits are determined by genes, which are segments of DNA that contain the instructions for building and maintaining an organism's body and traits.
Each parent contributes half of their genes to their offspring through their gametes, which are reproductive cells such as sperm and eggs. When a sperm fertilizes an egg, the resulting zygote has a complete set of genes from both parents.
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oxalic acid, (90.03 g/mol), is a common, aqueous reagent in lab. after usage, it can be neutralized by koh. if you spent 28.05 ml of 0.103 m basic solution to neutralize 13.1 g of the aqueous acid solution, what is the mass percent of the acid in the original solution?
To calculate the mass percent of the acid in the original solution, you must first calculate the moles of acid used in the reaction. Since oxalic acid has a molar mass of 90.03 g/mol, 13.1 g of the acid is equivalent to 0.145 moles of acid.
Then, you can use the moles of acid to calculate the moles of base required to neutralize it. Since 28.05 ml of 0.103 M base was used, this is equivalent to 0.0288 moles of base. Since the reaction involves a 1:2 mole ratio of acid to base, the moles of acid used was twice the moles of base, or 0.145 moles.
Finally, you can calculate the mass percent of the acid in the original solution by dividing the mass of the acid used (13.1 g) by the total mass of the solution (13.1 g + 28.05 ml of 0.103 M base). This gives a mass percent of 32.2%.
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a potassium hydroxide (koh) solution is 44.0% koh by mass and has a density of 1.43 g/ml at 20oc. what is the molarity of this koh solution? (round your answer to 3 significant figures.)
The molarity of this KOH solution is 14.03 m.
Given that
KOH solution of 44.0%
which means the mass is 44g KOH in 100g
of solution
mass of solvent = 100-44 g = 56g
conveting to kg 56/1000 = 0.056kg
Number of mole of KOH = 44 / 56 = 0.7857m
=0.7857 mol
morality = no. of mole of KOH / mass of solvent
= 0.7857 / 0.056
= 14.03m
Molarity is a unit of concentration that describes the amount of a solute, or the substance being dissolved, in a solution relative to the amount of solvent, or the substance that dissolves the solute. It is expressed as the number of moles of solute per liter of solution and is denoted by the symbol "M". Molarity is widely used in chemistry to describe the concentration of solutions, especially in reactions involving solutions.
The molarity of a solution can be calculated using the formula: moles of solute ÷ liters of solution. Knowing the molarity of a solution enables scientists and technicians to control the reaction conditions and predict the outcome of a reaction.
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KCI (S)
Cao (s)
SiO2 (s)
Compound
Conductive
CO2 (s)
No
No
No
No
Based on the student's data, can they determine which substances are ionic, and which are covalent?
A. No, as ionic compounds are only conductive in an aqueous (water) solution.
B. Yes, as all of these compounds are ionic since they are not conductive.
C. No, as covalent compounds are only conductive in an aqueous (water) solution.
D. Yes, as all of these compounds are covalent since they are not conductive.
Yes, as all of these compounds are covalent since they are not conductive.
Based on the information provided by the students, it is not possible to determine whether the compounds are ionic or covalent by solely examining their conductivity. The students tested the conductivity of the compounds in their solid form, but the conductivity of a compound does not necessarily indicate its type of bonding. Ionic compounds can be conductive in an aqueous solution, but not in their pure solid form, while covalent compounds are typically not conductive in either form. The fact that none of the compounds are conductive in the students' experiment does not mean that they are covalent. To determine the type of bonding in a compound, other factors such as chemical formula, crystal structure, and electronegativity difference between the elements must be considered.
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explain why one molecule of nabh4 will reduce only twomolecules of m-acetylbenzaldehyde to form thecorresponding product.
Only two molecules of m-acetylbenzaldehyde need to be reduced by one molecule of nabh4 to produce the desired result because there are only two functional groups that may react with NaBH4, namely the ketone and the aldehyde.
But NaBH4 has four Hs present to protonate the molecule. Meso substances have no optical activity. Aldehydes and ketones are the only compounds that NaBH4, a weak reducing agent, will reduce. NaBH4 can only reduce 2 molecules since it only has 4 hydride ions, and one molecule acting as the substrate will require 2 hydride ions for reduction. A stereoisomer having two or more chiral centers but no optical activity because of an internal plane of symmetry is referred to as a meso compound. Compounds known as mesomers have no net rotation of polarized light in the plane.
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the reaction between nitrogen and hydrogen to form ammonia is carried out in a flask containing 30.5 g of n2 and 8.65 g of h2 . what is the theoretical yield of nh3 in grams?
The required mass of NH3 is 9.18g when the reaction between nitrogen and hydrogen to form ammonia is carried out in a flask containing 30.5 g of N2 and 8.65 g of H2.
Given the mass of N2 (m1) = 30.5g
The mass of H2 (m2) = 8.65g
Nitrogen and hydrogen react to generate ammonia as follows:
[tex]N2 + 3H2 ---- > 2NH3[/tex]
The molar mass of nitrogen (N) = 28g/mole
The molar mass of hydrogen (H) will be = 2g/mole
You can infer from the process that for every one mole of nitrogen gas involved, three moles of hydrogen gas will be consumed, and one mole of ammonia will be produced.
moles of nitrogen used = m1/N = 30.5/28 = 1.08
moles of hydrogen used = m2/H = 8.65/2 = 4.325
Here, Nitrogen acts as the limiting reagent.
The molar mass of NH3 (ammonia) = 17g/mole
So, the mass of NH3 required = (1.08/2)x 17 = 9.18g
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How many electrons are in the valence shell of the sodium atom shown below?
Please help!
A single electron is present in the valence shell of sodium shown.
What is a valence shell?
In chemistry and physics, the valence electron is an electron that is part of the outer shell of an atom. When the outer shell is open, the valence electron can participate in the formation of a chemical bond. Each atom in a bond contributes a valence electron and forms a common pair in a single covalent bond. The valence shell of an atom refers to its outermost orbit or shell. These electrons are necessary for creating bonds between atoms. It can be filled whole or in part.
So, as you can see from the diagram, we see that there is only one electron in the valence shell.
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4fe(s) 3o2(g) 2fe2o3(g) in a certain reaction, 27.3 g of iron reacts with 45.8 g of oxygen. what is the limiting reactant?
In a specific reaction, 27.3 g of iron and 45.8 g of oxygen combine to form 4fe(s) 3o2(g) 2fe2o3(g). Fe serves as the limiting reactant.
We can only produce 0.247 mol of ferric oxide because dioxygen is obviously in stoichiometric excess and iron is the limiting reagent. A decomposition reaction is 4Fe(s) + 3O2(g) arrow 2Fe2O3(s). 4 moles of Fe react to produce 2 moles of iron(III) oxide, according to the reaction. Iron is oxidised in this reaction when oxygen is added to it. The oxidising agent in this case is oxygen. An oxidising agent is a chemical that undergoes a redox reaction that either accepts or acquires electrons or has a tendency to add oxygen atoms.Since the ratio of carbon monoxide to ferric oxide in the balanced chemical equation is lower than it is in the provided masses, carbon monoxide is the limiting reagent.
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the student places the same mass of agoh(s) into 50.0ml of different solutions with specific ph values and measures the concentration of ag ions in each solution after equilibrium is reached. based on the data in the table, what can be concluded about the solubility of agoh?
The solubility of AgOH is dependent on pH. The solubility of a salt is determined by the balance between the rate at which the salt dissolves and the rate at which it precipitates.
By examining the concentration of Ag ions in each solution with different pH values, it can be concluded that the solubility of AgOH is dependent on the pH. If the pH is high, the concentration of Ag ions will be high, indicating a higher solubility. If the pH is low, the concentration of Ag ions will be low, indicating a lower solubility. The solubility of AgOH can be described by the common ion effect, which states that the solubility of a salt will decrease as the concentration of one of its ions increases in solution.
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