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gavmur [86]
4 years ago
15

What is the ph of a solution that is .75 m in sodium acetate and .50 m in acetic acid? (ka for acetic acid is 1.8*10^-5?

Chemistry
1 answer:
inna [77]4 years ago
8 0

Answer:

4.921.

Explanation:

  • It is an acidic buffer solution;

∵ pH = pKa + log[salt]/[acid].

<em>∴ pH </em>= - log(1,8 x 10⁻⁵) + log[0.75/0.50] = 4.745 + 0.1761 = <em>4.921.</em>

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