Calculate the molality of a 20.0% by mass ammonium sulfate (NH4)2SO4 solution. The density of the solution is 1.117 g/mL.

A) 0.151 m B) 0.200 m C) 0.223 m D) 1.51 m E) 1.89 m A) 0.151 m B) 0.200 m C) 0.223 m D) 1.51 m E) 1.89 m

Copper(II) bromide is used as a wood preservative. What mass of CuBr2 is needed to prepare 750.0 mL of a 1.25 M solution?

A) 134 g B) 209 g C) 372 g D) 750 g E) 938 g A) 134 g B) 209 g C) 372 g D) 750 g E) 938 g

What is the percent CdSO4 by mass in a 1.00 molal aqueous CdSO4 solution?

A) 0.001% B) 0.10% C) 17.2% D) 20.8% E) 24.4% A) 0.001% B) 0.10% C) 17.2% D) 20.8% E) 24.4%

Exam 13: Physical Properties of Solutions

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The osmotic pressure of a 0.010 M MgSO₄ solution at 25°C is 0.318 atm. Calculate i, the van't Hoff factor, for this MgSO₄ solution. (R = 0.08206 L • atm/K • mol)

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Question 101

Select the strongest electrolyte from the following set.

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Question 102

A 0.100 m K₂SO₄ solution has a freezing point of -0.43°C. What is the van't Hoff factor for this solution? (K_f = 1.86°C/m)

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Question 103

What is the name for a solute that does not exert a vapor pressure when it is dissolved in a liquid?

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Question 104

Colloidal particles may be solids, liquids, or gases.

(True/False)

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Question 105

What name is given to a minor component in a solution?

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Question 106

The distinguishing characteristic of all electrolyte solutions is that they

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Question 107

Calculate the molality of a 20.0% by mass ammonium sulfate (NH₄)₂SO₄ solution. The density of the solution is 1.117 g/mL.

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Question 108

The solubility of gases in water always decreases with increasing temperature.

(True/False)

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Question 109

Copper(II) bromide is used as a wood preservative. What mass of CuBr₂ is needed to prepare 750.0 mL of a 1.25 M solution?

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Question 110

Which accurately characterizes all nonelectrolyte solutions?

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Question 111

What is the freezing point of an aqueous solution of NaCl that boils at 102.5°C? (For water, K_f = 1.86°C/m; K_b = 0.52°C/m)

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Question 112

Which is defined as the maximum amount of solute that will dissolve in a given quantity of solvent at a specific temperature?

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Question 113

Gases with high boiling points tend to be more soluble in water than ones with low boiling points.

(True/False)

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Question 114

The osmotic pressure of a 0.82 M HCl solution is 35.9 atm at 18°C. The van't Hoff factor for HCl at this concentration is

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Question 115

What is the percent CdSO₄ by mass in a 1.00 molal aqueous CdSO₄ solution?

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Question 116

A 0.100 m MgSO₄ solution has a freezing point of -0.23°C. What is the van't Hoff factor for this solution? (K_f = 1.86°C/m)

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Question 117

Benzaldehyde (106.12 g/mol), also known as oil of almonds, is used in the manufacture of dyes and perfumes and in flavorings. What would be the freezing point of a solution prepared by dissolving 75.00 g of benzaldehyde in 850.0 g of ethanol? (For ethanol, K_f = 1.99°C/m; freezing point of pure ethanol = -117.3°C)

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Question 118

What is the percent CsCl by mass in a 0.711 M aqueous CsCl solution that has a density of 1.091 g/mL?

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Question 119

Which is immiscible with water?

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Question 120

Showing 101 - 120 of 151

Exam 13: Physical Properties of Solutions

The osmotic pressure of a 0.010 M MgSO4 solution at 25°C is 0.318 atm. Calculate i, the van't Hoff factor, for this MgSO4 solution. (R = 0.08206 L • atm/K • mol)

Select the strongest electrolyte from the following set.

A 0.100 m K2SO4 solution has a freezing point of -0.43°C. What is the van't Hoff factor for this solution? (Kf = 1.86°C/m)

What is the name for a solute that does not exert a vapor pressure when it is dissolved in a liquid?

Colloidal particles may be solids, liquids, or gases.

What name is given to a minor component in a solution?

The distinguishing characteristic of all electrolyte solutions is that they

Calculate the molality of a 20.0% by mass ammonium sulfate (NH4)2SO4 solution. The density of the solution is 1.117 g/mL.

The solubility of gases in water always decreases with increasing temperature.

Copper(II) bromide is used as a wood preservative. What mass of CuBr2 is needed to prepare 750.0 mL of a 1.25 M solution?

Which accurately characterizes all nonelectrolyte solutions?

What is the freezing point of an aqueous solution of NaCl that boils at 102.5°C? (For water, Kf = 1.86°C/m; Kb = 0.52°C/m)

Which is defined as the maximum amount of solute that will dissolve in a given quantity of solvent at a specific temperature?

Gases with high boiling points tend to be more soluble in water than ones with low boiling points.

The osmotic pressure of a 0.82 M HCl solution is 35.9 atm at 18°C. The van't Hoff factor for HCl at this concentration is

What is the percent CdSO4 by mass in a 1.00 molal aqueous CdSO4 solution?

A 0.100 m MgSO4 solution has a freezing point of -0.23°C. What is the van't Hoff factor for this solution? (Kf = 1.86°C/m)

What is the percent CsCl by mass in a 0.711 M aqueous CsCl solution that has a density of 1.091 g/mL?

Which is immiscible with water?

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The osmotic pressure of a 0.010 M MgSO₄ solution at 25°C is 0.318 atm. Calculate i, the van't Hoff factor, for this MgSO₄ solution. (R = 0.08206 L • atm/K • mol)

A 0.100 m K₂SO₄ solution has a freezing point of -0.43°C. What is the van't Hoff factor for this solution? (K_f = 1.86°C/m)

Calculate the molality of a 20.0% by mass ammonium sulfate (NH₄)₂SO₄ solution. The density of the solution is 1.117 g/mL.

Copper(II) bromide is used as a wood preservative. What mass of CuBr₂ is needed to prepare 750.0 mL of a 1.25 M solution?

What is the freezing point of an aqueous solution of NaCl that boils at 102.5°C? (For water, K_f = 1.86°C/m; K_b = 0.52°C/m)

What is the percent CdSO₄ by mass in a 1.00 molal aqueous CdSO₄ solution?

A 0.100 m MgSO₄ solution has a freezing point of -0.23°C. What is the van't Hoff factor for this solution? (K_f = 1.86°C/m)