D2L5_Answers - D2L Acids/Bases-1(Assignment#5 Answers Q1...

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D2L Acids/Bases-1 (Assignment#5) – Answers Q1. Which one of the following is a strong acid? 1) CH 3 COOH Feedback: Difficulty: M 2) H 2 SO 3 Feedback: Difficulty: M 3) H 2 SO 4 Feedback: Difficulty: M 4) H 2 CO 3 Feedback: Difficulty: M 5) H 3 PO 4 Feedback: Difficulty: M Q2. The substance (CH 3 CH 2 ) 2 NH is considered 1) a weak base. Feedback: Difficulty: M 2) a strong base. Feedback: Difficulty: M 3) a neutral compound. Feedback: Difficulty: M 4) a strong acid.
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Feedback: Difficulty: M 5) a weak acid. Feedback: Difficulty: M Q3. Which of the following pairs has the stronger acid listed first? 1) H 2 S, HCl Feedback: Difficulty: M 2) HClO, HClO 3 Feedback: Difficulty: M 3) H 2 AsO 3 , H 2 AsO 4 Feedback: Difficulty: M 4) H 2 SO 3 , H 2 SO 4 Feedback: Difficulty: M 5) HI, HBr Feedback: Difficulty: M Q4. Which of the following acids has the lowest pH? 0.1 M HBO, p K a = 2.43 0.1 M HA , p K a = 4.55 0.1 M HMO, p K a = 8.23 0.1 M HST , p K a = 11.89 pure water 1) pure water
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Feedback: Difficulty: E 2) HST Feedback: Difficulty: E 3) HA Feedback: Difficulty: E 4) HMO Feedback: Difficulty: E 5) HBO
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