Quiz 1 - Version 093 – Quiz 1 – rowland –(53210 1...

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Unformatted text preview: Version 093 – Quiz 1 – rowland – (53210) 1 This print-out should have 10 questions. Multiple-choice questions may continue on the next column or page – find all choices before answering. 001 10.0 points An animal cell assumes its normal volume when it is placed in a solution with a total solute molarity of 0.3 M. If the cell is placed in a solution with a total solute molarity of 0.1 M, 1. water leaves the cell, causing contrac- tion. 2. no movement of water takes place. 3. water enters the cell, causing expansion. correct 4. the escaping tendency of water in the cell increases. Explanation: 002 10.0 points Octane (C 8 H 18 ) is a major component of gaso- line. Which of the following would you expect to be the LEAST soluble in gasoline? 1. table sugar 2. diesel fuel 3. table salt correct 4. candle wax 5. motor oil Explanation: Octane is a non-polar compound so it would be less likely to dissolve polar or ionic sub- stances. 003 10.0 points What is the osmotic pressure of a solution that contains 4.56 × 10- 3 moles of lactose in 100 mL of solution at M 25 ◦ C? 1. 848 torr correct 2. 71 torr 3. 111.5 torr 4. 536 torr 5. 165.6 torr Explanation: n = 4 . 56 × 10- 3 mol V = 100 mL T = 25 ◦ C + 273 = 298 K...
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Quiz 1 - Version 093 – Quiz 1 – rowland –(53210 1...

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