D2L6_Answers - D2L Acids/Bases-2(Assignment#6 Answers Q1...

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D2L Acids/Bases-2 (Assignment#6) - Answers Q1. What is the pH of a 0.75 M HNO 3 solution? 1) > 1.0 Feedback: Difficulty: E 2) 0.82 Feedback: Difficulty: E 3) 0.29 Feedback: Difficulty: E 4) 0.63 Feedback: Difficulty: E 5) 0.12 Feedback: Difficulty: E Q2. What is the pOH of a 0.0250 M HI solution? 1) 13.056 Feedback: Difficulty: M 2) 1.602 Feedback: Difficulty: M 3) none of the above Feedback: Difficulty: M 4) 0.944 Feedback:
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Difficulty: M 5) 12.398 Feedback: Difficulty: M Q3. What is the [H 3 O + ] for a solution at 25 ° C that has pOH = 5.640? 1) 2.34 × 10 -4 M Feedback: Difficulty: M 2) 4.37 × 10 -9 M Feedback: Difficulty: M 3) 8.360 M Feedback: Difficulty: M 4) 4.27 × 10 -11 M Feedback: Difficulty: M 5) 2.29 × 10 -6 M Feedback: Difficulty: M Q4. Butyric acid is responsible for the odor in rancid butter. A solution of 0.25 M butyric acid has a pH of 2.71. What is the K a for the acid? 1) 2.4 × 10 -2 Feedback: Difficulty: M 2) 0.36 Feedback: Difficulty: M
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3) 1.5 × 10 -5 Feedback: Difficulty: M 4) 7.8 × 10 -3 Feedback: Difficulty: M 5) none of the above Feedback: Difficulty: M Q5.
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