Which response lists all the following pairs that are miscible liquids? I. octane (C8H18) and water II) acetic acid (CH3COOH) and water III) octane (C8H18) and carbon tetrachloride (CCl4)

A) I and III B) I and II C) III only D) II only E) II and III A) I and III B) I and II C) III only D) II only E) II and III

What is the molarity of a solution of 10.0% by mass cadmium sulfate, CdSO4 (208.47 g/mol)? The density of the solution is 1.10 g/mL.

A) 0.528 M B) 0.436 M C) 0.479 M D) 0.100 M E) 1.89 M A) 0.528 M B) 0.436 M C) 0.479 M D) 0.100 M E) 1.89 M

Exam 13: Physical Properties of Solutions

Potassium fluoride is used for frosting glass. Calculate the molarity of a solution prepared by dissolving 78.6 g of KF in enough water to produce 225 mL of solution.

(Multiple Choice)

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Question 41

Osmosis is the selective passage of solvent molecules through a porous membrane from a more concentrated solution to a more dilute one.

(True/False)

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Question 42

Which response lists all the following pairs that are miscible liquids? I. octane (C₈H₁₈) and water II) acetic acid (CH₃COOH) and water III) octane (C₈H₁₈) and carbon tetrachloride (CCl₄)

(Multiple Choice)

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Question 43

What is the molality of a solution prepared by dissolving 84.7 g of KMnO₄ in 165 g of water?

(Multiple Choice)

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Question 44

Hydrophilic and hydrophobic are not exactly the opposite phenomenon.

(True/False)

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Question 45

A(n) is the name given to the material which allows the passage of solvent molecules but blocks the passage of solute molecules.

(Short Answer)

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Question 46

At 10°C one volume of water dissolves 3.10 volumes of chlorine gas at 1.00 atm pressure. What is the Henry's law constant of Cl₂ in water? (R = 0.0821 atm • L • mol^-1•K^-1 )

(Multiple Choice)

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Question 47

What mass of LiOH is required to prepare 0.250 L of a 3.55 M solution?

(Multiple Choice)

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Question 48

In the following diagrams, the black circles represent a solute in solution. Which diagram represents a saturated solution?

(Multiple Choice)

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Question 49

An "ideal solution" is a solution that obeys Raoult's law.

(True/False)

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Question 50

An emulsion is a dispersion consisting of a

(Multiple Choice)

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Question 51

What relationship states that the partial pressure of a solvent over a solution is given by the vapor pressure of the pure solvent times the mole fraction of the solvent in the solution?

(Multiple Choice)

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Question 52

Below is a diagram representing a gas G in equilibrium, above a sample of water and dissolved in the water. If the pressure of the gas G is doubled, which diagram below best represents how the system will respond?

(Multiple Choice)

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Question 53

The solubility of gases in water ________ (increases or decreases) as the temperature increases.

(Short Answer)

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Question 54

What is the molarity of a solution of 10.0% by mass cadmium sulfate, CdSO₄ (208.47 g/mol)? The density of the solution is 1.10 g/mL.

(Multiple Choice)

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Question 55

What mass of ethanol (C₂H₅OH), a nonelectrolyte, must be added to 10.0 L of water to give a solution that freezes at -10.0°C? Assume the density of water is 1.0 g/mL. (K_f of water is 1.86°C/m.)

(Multiple Choice)

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Question 56

The solubility of the oxidizing agent potassium permanganate is 7.1 g per 100.0 g of water at 25°C. What is the mole fraction of potassium permanganate (KMnO₄) in this solution?

(Multiple Choice)

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Question 57

The mixing of solvent molecules and solute molecules is usually described as

(Multiple Choice)

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Question 58

Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. (For water, K_f = 1.86°C/m)

(Multiple Choice)

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Question 59

Which one of the following substances is the strongest electrolyte?

(Multiple Choice)

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Question 60

Showing 41 - 60 of 151

Exam 13: Physical Properties of Solutions

Potassium fluoride is used for frosting glass. Calculate the molarity of a solution prepared by dissolving 78.6 g of KF in enough water to produce 225 mL of solution.

Osmosis is the selective passage of solvent molecules through a porous membrane from a more concentrated solution to a more dilute one.

Which response lists all the following pairs that are miscible liquids? I. octane (C8H18) and water II) acetic acid (CH3COOH) and water III) octane (C8H18) and carbon tetrachloride (CCl4)

What is the molality of a solution prepared by dissolving 84.7 g of KMnO4 in 165 g of water?

Hydrophilic and hydrophobic are not exactly the opposite phenomenon.

A(n) ________ ________ is the name given to the material which allows the passage of solvent molecules but blocks the passage of solute molecules.

At 10°C one volume of water dissolves 3.10 volumes of chlorine gas at 1.00 atm pressure. What is the Henry's law constant of Cl2 in water? (R = 0.0821 atm • L • mol-1• K-1 )

What mass of LiOH is required to prepare 0.250 L of a 3.55 M solution?

In the following diagrams, the black circles represent a solute in solution. Which diagram represents a saturated solution?

An "ideal solution" is a solution that obeys Raoult's law.

An emulsion is a dispersion consisting of a

What relationship states that the partial pressure of a solvent over a solution is given by the vapor pressure of the pure solvent times the mole fraction of the solvent in the solution?

Below is a diagram representing a gas G in equilibrium, above a sample of water and dissolved in the water. If the pressure of the gas G is doubled, which diagram below best represents how the system will respond?

The solubility of gases in water ________ (increases or decreases) as the temperature increases.

What is the molarity of a solution of 10.0% by mass cadmium sulfate, CdSO4 (208.47 g/mol)? The density of the solution is 1.10 g/mL.

What mass of ethanol (C2H5OH), a nonelectrolyte, must be added to 10.0 L of water to give a solution that freezes at -10.0°C? Assume the density of water is 1.0 g/mL. (Kf of water is 1.86°C/m.)

The solubility of the oxidizing agent potassium permanganate is 7.1 g per 100.0 g of water at 25°C. What is the mole fraction of potassium permanganate (KMnO4) in this solution?

The mixing of solvent molecules and solute molecules is usually described as

Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. (For water, Kf = 1.86°C/m)

Which one of the following substances is the strongest electrolyte?

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Which response lists all the following pairs that are miscible liquids? I. octane (C₈H₁₈) and water II) acetic acid (CH₃COOH) and water III) octane (C₈H₁₈) and carbon tetrachloride (CCl₄)

What is the molality of a solution prepared by dissolving 84.7 g of KMnO₄ in 165 g of water?

A(n) is the name given to the material which allows the passage of solvent molecules but blocks the passage of solute molecules.

At 10°C one volume of water dissolves 3.10 volumes of chlorine gas at 1.00 atm pressure. What is the Henry's law constant of Cl₂ in water? (R = 0.0821 atm • L • mol^-1•K^-1 )

What is the molarity of a solution of 10.0% by mass cadmium sulfate, CdSO₄ (208.47 g/mol)? The density of the solution is 1.10 g/mL.

What mass of ethanol (C₂H₅OH), a nonelectrolyte, must be added to 10.0 L of water to give a solution that freezes at -10.0°C? Assume the density of water is 1.0 g/mL. (K_f of water is 1.86°C/m.)

The solubility of the oxidizing agent potassium permanganate is 7.1 g per 100.0 g of water at 25°C. What is the mole fraction of potassium permanganate (KMnO₄) in this solution?

Determine the freezing point of a solution which contains 0.31 mol of sucrose in 175 g of water. (For water, K_f = 1.86°C/m)