Author Question: An aqueous solution is prepared by dissolving 0.23 mol of hydrazoic acid and 0.27 mol of sodium ... (Read 71 times)

hbsimmons88 · **on:** Jul 8, 2021

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.

at · **Reply #1 on:** Jul 8, 2021

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