What should the pH of a solution of 1.0 mL of 0.1 M acetic acid and...

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What should the pH of a solution of 1.0 mL of 0.1 M acetic acid and...

What should the pH of a solution of 1.0 mL of 0.1 M acetic acid and 1.0 mL of 0.1 M sodium acetate and 48.0 mL of water be? Justify your answer.

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Answer 1

Answer #1

[CH₃COONa] : 0.1 x 0.001 / 0.05 = 2x10^-3 M

Ka = 1.75x10^-5

pH = pKa + log [Salt]/[Acid]

pH = -log(1.75x10^-5) + log(2x10^-3) / (0.1)

pH = 3.05

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Answer 2

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