Answer to Question #271579 in General Chemistry for Soph

Question

You are asked to prepare a buffer solution with pH 5.10. If you start with a solution containing 10.0 mmol acetic acid (CH₃COOH, K_a = 1.8×10^-5), how many millimoles of sodium acetate (CH₃COONa) must be added to the solution?

Express your answer to three significant figures.

Answer 1

Millimoles of sodium acetate=24.6millimoles