What mass of a solution labeled 6.3% sucrose (C12H22O11,342 g/mol)by mass contains 11.0 g of sucrose?

A) 2.7 g B) 21 g C) 170 g D) 0 g E) 69 g A) 2.7 g B) 21 g C) 170 g D) 0 g E) 69 g

What is the molality of a solution that contains 9.16 g of glucose,C6H12O6,in 228.5 g of water?

A) 0.223 m B) 0.0509 m C) 0.00399 m D) 0.0116 m E) 0.0401 m A) 0.223 m B) 0.0509 m C) 0.00399 m D) 0.0116 m E) 0.0401 m

Consider the following gas-liquid equilibrium for an aqueous system at a constant partial pressure of N2. N2(g) N2(aq) What is the effect on the equilibrium composition of the liquid when the temperature of the liquid is increased?

A) The amount of N2 dissolved in the liquid increases. B) The amount of N2 dissolved in the liquid decreases. C) The amount of N2 dissolved in the liquid does not change. D) Not enough information is provided to answer the question. E) Either A or B could occur. A) The amount of N2 dissolved in the liquid increases. B) The amount of N2 dissolved in the liquid decreases. C) The amount of N2 dissolved in the liquid does not change. D) Not enough information is provided to answer the question. E) Either A or B could occur.

What is the molality of a solution that contains 74.2 g of 1,4-dichlorobenzene (C6H4Cl2)in 492 mL of carbon tetrachloride (CCl4)? The density of CCl4 is 1.60 g/mL.

A) 0.158 m B) 0.642 m C) 0.151 m D) 0.094 m E) 1.64 m A) 0.158 m B) 0.642 m C) 0.151 m D) 0.094 m E) 1.64 m

Exam 12: Solutions

Benzene,C₆H₆,and toluene,C₆H₅CH₃,form ideal solutions.At 35°C the vapor pressure of benzene is 160.torr and that of toluene is 50.0 torr.In an experiment,55.6 g of benzene and 86.6 g of toluene are placed in a closed container at 35°C.At equilibrium,what is the partial vapor pressure of toluene?

(Multiple Choice)

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Question 61

What mass of a solution labeled 6.3% sucrose (C₁₂H₂₂O₁₁,342 g/mol)by mass contains 11.0 g of sucrose?

(Multiple Choice)

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Question 62

Substance A has a greater molar mass than substance B.If 50 g of substance A are dissolved in 250 g of water in one beaker,and 50 g of substance B are dissolved in 250 g of water in another beaker,then

(Multiple Choice)

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Question 63

Which of the following solutes,dissolved in 1.0 kg of water,creates a solution that boils at the highest temperature?

(Multiple Choice)

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Question 64

Synthetic detergent dispersed in water is an example of a(n)

(Multiple Choice)

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Question 65

What is the molality of a 30.0% by mass hydrochloric acid solution? The density of the solution is 1.1493 g/mL.

(Multiple Choice)

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Question 66

The molarity of a solution is defined as the

(Multiple Choice)

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Question 67

A cucumber is placed in a concentrated salt solution.What is most likely to happen?

(Multiple Choice)

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Question 68

What is the molarity of a 10.0% by mass hydrochloric acid solution? The density of the solution is 1.0474 g/mL.

(Multiple Choice)

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Question 69

What is the vapor pressure at 75°C of an aqueous solution prepared by the addition of 58.4 g of the nonvolatile solute urea,CO(NH₂)₂,to 172 g of water? The vapor pressure of pure water at 75°C is 290.mmHg.

(Multiple Choice)

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Question 70

Determine the osmotic pressure of a solution that contains 0.018 g of a hydrocarbon solute (molar mass = 340 g/mol)dissolved in benzene to make a 350-mL solution.The temperature is 20.0°C.

(Multiple Choice)

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Question 71

What is the molality of a solution that contains 9.16 g of glucose,C₆H₁₂O₆,in 228.5 g of water?

(Multiple Choice)

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Question 72

Consider the following gas-liquid equilibrium for an aqueous system at a constant partial pressure of N₂. N₂(g) N₂(aq) What is the effect on the equilibrium composition of the liquid when the temperature of the liquid is increased?

(Multiple Choice)

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Question 73

If two fluids do not mix but,rather,form two layers,they are said to be _____.

(Multiple Choice)

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Question 74

Which of the following methods cannot be used to determine the molar mass of a nonelectrolyte?

(Multiple Choice)

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Question 75

Which of the following is not a colligative property?

(Multiple Choice)

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Question 76

A concentrated ammonia solution is 28.0% NH₃ by mass and has a density of 0.939 g/mL at 25°C.The remainder of material is solvent.What is the molality of NH₃ in the solution?

(Multiple Choice)

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Question 77

What is the mole fraction of water in a water-ethanol solution that is 47.0% water by mass? (Ethanol is C₂H₅OH.)

(Multiple Choice)

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Question 78

What is the molality of a solution that contains 74.2 g of 1,4-dichlorobenzene (C₆H₄Cl₂)in 492 mL of carbon tetrachloride (CCl₄)? The density of CCl₄ is 1.60 g/mL.

(Multiple Choice)

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Question 79

Which of the following pure liquids is the best solvent for carbon disulfide?

(Multiple Choice)

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Question 80

Showing 61 - 80 of 119

Exam 12: Solutions

Benzene,C6H6,and toluene,C6H5CH3,form ideal solutions.At 35°C the vapor pressure of benzene is 160.torr and that of toluene is 50.0 torr.In an experiment,55.6 g of benzene and 86.6 g of toluene are placed in a closed container at 35°C.At equilibrium,what is the partial vapor pressure of toluene?

What mass of a solution labeled 6.3% sucrose (C12H22O11,342 g/mol)by mass contains 11.0 g of sucrose?

Substance A has a greater molar mass than substance B.If 50 g of substance A are dissolved in 250 g of water in one beaker,and 50 g of substance B are dissolved in 250 g of water in another beaker,then

Which of the following solutes,dissolved in 1.0 kg of water,creates a solution that boils at the highest temperature?

Synthetic detergent dispersed in water is an example of a(n)

What is the molality of a 30.0% by mass hydrochloric acid solution? The density of the solution is 1.1493 g/mL.

The molarity of a solution is defined as the

A cucumber is placed in a concentrated salt solution.What is most likely to happen?

What is the molarity of a 10.0% by mass hydrochloric acid solution? The density of the solution is 1.0474 g/mL.

What is the vapor pressure at 75°C of an aqueous solution prepared by the addition of 58.4 g of the nonvolatile solute urea,CO(NH2)2,to 172 g of water? The vapor pressure of pure water at 75°C is 290.mmHg.

Determine the osmotic pressure of a solution that contains 0.018 g of a hydrocarbon solute (molar mass = 340 g/mol)dissolved in benzene to make a 350-mL solution.The temperature is 20.0°C.

What is the molality of a solution that contains 9.16 g of glucose,C6H12O6,in 228.5 g of water?

Consider the following gas-liquid equilibrium for an aqueous system at a constant partial pressure of N2. N2(g) N2(aq) What is the effect on the equilibrium composition of the liquid when the temperature of the liquid is increased?

If two fluids do not mix but,rather,form two layers,they are said to be _____.

Which of the following methods cannot be used to determine the molar mass of a nonelectrolyte?

Which of the following is not a colligative property?

A concentrated ammonia solution is 28.0% NH3 by mass and has a density of 0.939 g/mL at 25°C.The remainder of material is solvent.What is the molality of NH3 in the solution?

What is the mole fraction of water in a water-ethanol solution that is 47.0% water by mass? (Ethanol is C2H5OH.)

What is the molality of a solution that contains 74.2 g of 1,4-dichlorobenzene (C6H4Cl2)in 492 mL of carbon tetrachloride (CCl4)? The density of CCl4 is 1.60 g/mL.

Which of the following pure liquids is the best solvent for carbon disulfide?

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What mass of a solution labeled 6.3% sucrose (C₁₂H₂₂O₁₁,342 g/mol)by mass contains 11.0 g of sucrose?

What is the vapor pressure at 75°C of an aqueous solution prepared by the addition of 58.4 g of the nonvolatile solute urea,CO(NH₂)₂,to 172 g of water? The vapor pressure of pure water at 75°C is 290.mmHg.

What is the molality of a solution that contains 9.16 g of glucose,C₆H₁₂O₆,in 228.5 g of water?

Consider the following gas-liquid equilibrium for an aqueous system at a constant partial pressure of N₂. N₂(g) N₂(aq) What is the effect on the equilibrium composition of the liquid when the temperature of the liquid is increased?

A concentrated ammonia solution is 28.0% NH₃ by mass and has a density of 0.939 g/mL at 25°C.The remainder of material is solvent.What is the molality of NH₃ in the solution?

What is the mole fraction of water in a water-ethanol solution that is 47.0% water by mass? (Ethanol is C₂H₅OH.)

What is the molality of a solution that contains 74.2 g of 1,4-dichlorobenzene (C₆H₄Cl₂)in 492 mL of carbon tetrachloride (CCl₄)? The density of CCl₄ is 1.60 g/mL.