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1. Which compound is most soluble in octane (CH₂) a) CH,OH CBra c) H₂O d) NH 2. An aqueous solution is saturated in both potassium chlorate and carbon dioxide gas at room temperature. What happens when the solution is warmed to 85 °C? a) Potassium chlorate precipitates out of solution. Carbon dioxide bubbles out of solution. c) Potassium chlorate precipitates out of solution, and carbon dioxide bubbles out of solution. d) Nothing happens; all of the potassium chlorate and the carbon dioxide remain dissolved in solution. 3. A potassium bromide solution is 7.55% potassium bromide by mass, and its density is 1.03 g/mL. What mass of potassium bromide is contained in 35.8 mL of the solution? 2.78 g 2.70 g b) c) 4.88 g d) 2.62 g

1. Which compound is most soluble in octane (CH₂) a) CH,OH CBra c) H₂O d) NH 2. An aqueous solution is saturated in both potassium chlorate and carbon dioxide gas at room temperature. What happens when the solution is warmed to 85 °C? a) Potassium chlorate precipitates out of solution. Carbon dioxide bubbles out of solution. c) Potassium chlorate precipitates out of solution, and carbon dioxide bubbles out of solution. d) Nothing happens; all of the potassium chlorate and the carbon dioxide remain dissolved in solution. 3. A potassium bromide solution is 7.55% potassium bromide by mass, and its density is 1.03 g/mL. What mass of potassium bromide is contained in 35.8 mL of the solution? 2.78 g 2.70 g b) c) 4.88 g d) 2.62 g

Chemistry: The Molecular Science
Chemistry: The Molecular Science
5th Edition
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:John W. Moore, Conrad L. Stanitski
Chapter13: The Chemistry Of Solutes And Solutions
Section: Chapter Questions
Problem 27QRT: Refer to Figure 13.10 ( Sec. 13-4b) to answer these questions. (a) Does a saturated solution occur...
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1. Which compound is most soluble in octane (C₂H₂) a) CH₂OH CBra c) H₂O d) NH, 2. An aqueous solution is saturated in both potassium chlorate and carbon dioxide gas at room temperature. What happens when the solution is warmed to 85 °C? a) Potassium chlorate precipitates out of solution. Carbon dioxide bubbles out of solution. c) Potassium chlorate precipitates out of solution, and carbon dioxide bubbles out of solution. d) Nothing happens; all of the potassium chlorate and the carbon dioxide remain dissolved in solution. 3. A potassium bromide solution is 7.55% potassium bromide by mass, and its density is 1.03 g/mL. What mass of potassium bromide is contained in 35.8 mL of the solution? 2.78 g b) 2.70 g c) 4.88 g d) 2.62 g 4. A solution contains 22.4 g glucose (CHO) dissolved in 0.500 Lof water. What is the molality of the solution? (Assume a density of 1.00 g/mL for water.) a) 0.238 m b) 44.8 m 0.249 m d) 4.03 m 5. A solution contains a mixture of two volatile substances A and B. The mole traction of substance A is 0.35. At 32 °C the vapor pressure of pure A is 87 mmHg, and the vapor pressure of pure B is 122 mmHg. What is the total vapor pressure of the solution at this temperature? a) 110 mmHg b) 209 mmHg c) 99.3 mmHg d) 73.2 mmHg 6. What mass of glucose (C6H₁2Os) should you dissolve in 10.0 kg of water to obtain a solution with a freezing point of -4.2 °C? a) 0.023 kg (b) 4.1 kg c) 0.41 kg d) 14.1 kg
Transcribed Image Text:1. Which compound is most soluble in octane (C₂H₂) a) CH₂OH CBra c) H₂O d) NH, 2. An aqueous solution is saturated in both potassium chlorate and carbon dioxide gas at room temperature. What happens when the solution is warmed to 85 °C? a) Potassium chlorate precipitates out of solution. Carbon dioxide bubbles out of solution. c) Potassium chlorate precipitates out of solution, and carbon dioxide bubbles out of solution. d) Nothing happens; all of the potassium chlorate and the carbon dioxide remain dissolved in solution. 3. A potassium bromide solution is 7.55% potassium bromide by mass, and its density is 1.03 g/mL. What mass of potassium bromide is contained in 35.8 mL of the solution? 2.78 g b) 2.70 g c) 4.88 g d) 2.62 g 4. A solution contains 22.4 g glucose (CHO) dissolved in 0.500 Lof water. What is the molality of the solution? (Assume a density of 1.00 g/mL for water.) a) 0.238 m b) 44.8 m 0.249 m d) 4.03 m 5. A solution contains a mixture of two volatile substances A and B. The mole traction of substance A is 0.35. At 32 °C the vapor pressure of pure A is 87 mmHg, and the vapor pressure of pure B is 122 mmHg. What is the total vapor pressure of the solution at this temperature? a) 110 mmHg b) 209 mmHg c) 99.3 mmHg d) 73.2 mmHg 6. What mass of glucose (C6H₁2Os) should you dissolve in 10.0 kg of water to obtain a solution with a freezing point of -4.2 °C? a) 0.023 kg (b) 4.1 kg c) 0.41 kg d) 14.1 kg
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