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Author Question: You have 500.0 mL of a buffer solution containing 0.20 M acetic acid (CH3COOH) and 0.30 M sodium ... (Read 15 times)

warrenjean01

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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?  [Ka = 1.8 × 10–5]
◦ 4.41
◦ 4.74
◦ 4.56
◦ 4.92
◦ 5.07


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Marked as best answer by warrenjean01 on Nov 5, 2023

kaelamcrone

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warrenjean01

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Reply 2 on: Nov 5, 2023
Thanks for the timely response, appreciate it


rachel

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Reply 3 on: Yesterday
:D TYSM

 

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