HW 2 - ) HW 2 Sathasivan (49750) 1 This print-out should...

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Unformatted text preview: ) HW 2 Sathasivan (49750) 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 Which group is basic and becomes posi- tively charged? 1. NH 2 correct 2. C O H O 3. C O 4. OH 5. SH Explanation: Comprehension and application 002 10.0 points Consider the molecule R C O O H What is its functional group? 1. carbonyl 2. dehydroxyl 3. methyl 4. acetyl 5. carboxyl correct Explanation: Factual recall 003 10.0 points Read the article Sect 3: Special Properties of Water and Aqueous Solutions How many milliliters of 5.5 M NaOH are needed to prepare 300 mL of 1.2 M NaOH? 1. 100 mL 2. 300 mL 3. 65 mL correct 4. 200 mL Explanation: You dilute a solution whenever you add solvent to a solution. Adding solvent results in a solution of lower concentration. You can calculate the concentration of a solution following a dilution by applying this equation: M 1 V 1 = M 2 V 2 , where M is molarity,...
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HW 2 - ) HW 2 Sathasivan (49750) 1 This print-out should...

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