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An aqueous solution is prepared by dissolving 0.23 mol of hydrazoic acid and 0.27 mol of sodium azide in water sufficient to yield 1.00 L of solution.The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the present in the buffer solution. The Ka of hydrazoic acid is 1.9 x 10-5. A) hydrazoic acid в) Н20 C) H3O* D) azide E) This is a buffer solution: the pH does not change upon addition of acid or base.

An aqueous solution is prepared by dissolving 0.23 mol of hydrazoic acid and 0.27 mol of sodium azide in water sufficient to yield 1.00 L of solution.The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the present in the buffer solution. The Ka of hydrazoic acid is 1.9 x 10-5. A) hydrazoic acid в) Н20 C) H3O* D) azide E) This is a buffer solution: the pH does not change upon addition of acid or base.

Principles of Modern Chemistry
Principles of Modern Chemistry
8th Edition
ISBN:9781305079113
Author:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Publisher:David W. Oxtoby, H. Pat Gillis, Laurie J. Butler
Chapter15: Acid–base Equilibria
Section: Chapter Questions
Problem 45P
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An aqueous solution is prepared by dissolving 0.23 mol of hydrazoic acid and 0.27 mol of sodium azide in water sufficient to yield 1.00 L of solution.The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the, present in the buffer solution. The Ka of hydrazoic acid is 1.9 × 10-5. A) hydrazoic acid B) H2O C) H3O* D) azide E) This is a buffer solution: the pH does not change upon addition of acid or base.
Transcribed Image Text:An aqueous solution is prepared by dissolving 0.23 mol of hydrazoic acid and 0.27 mol of sodium azide in water sufficient to yield 1.00 L of solution.The addition of 0.05 mol of NaOH to this buffer solution causes the pH to increase slightly. The pH does not increase drastically because the NaOH reacts with the, present in the buffer solution. The Ka of hydrazoic acid is 1.9 × 10-5. A) hydrazoic acid B) H2O C) H3O* D) azide E) This is a buffer solution: the pH does not change upon addition of acid or base.
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