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An aqueous solution is prepared by dissolving 0.23 mol of hydrazoic acid and 0.27 mol of sodium ...

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An aqueous solution is prepared by dissolving 0.23 mol of hydrazoic acid and 0.27 mol of sodium ...

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 K_a of hydrazoic acid is 1.9 × 10^-5.

▸ H₂O

▸ H₃O⁺

▸ azide

▸ hydrazoic acid

▸ This is a buffer solution: the pH does not change upon addition of acid or base.

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General Chemistry: Principles and Modern Applications

Edition: 11^th

Authors: Petrucci, Herring, Madura, Bissonnette

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