Author Question: You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH3COOH) and 0.30 M sodium ... (Read 28 times)

warrenjean01 · **on:** Nov 5, 2023

Question 1

You are asked to go into the lab and prepare an acetic acid - sodium acetate buffer solution with a pH of 4.00 ± 0.02. What molar ratio of CH₃COOH to CH₃COONa should be used?
◦ 0.18
◦ 0.84
◦ 1.19
◦ 5.50
◦ 0.10

Question 2

You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH₃COOH) and 0.30 M sodium acetate (CH₃COONa). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M NaOH solution? [K_a = 1.8 × 10^–5]
◦ 4.41
◦ 4.74
◦ 4.56
◦ 4.92
◦ 5.07

kaelamcrone · **Reply #1 on:** Nov 5, 2023

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