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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 126 times)

warrenjean01

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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?  [Ka = 1.8 × 10–5]
◦ 4.41
◦ 4.74
◦ 4.56
◦ 4.92
◦ 5.07
Chemistry ¦ Chang, Goldsby ¦ 11th Edition
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Marked as best answer by warrenjean01 on Nov 5, 2023

kaelamcrone

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Reply #1 on: Nov 5, 2023
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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warrenjean01

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Reply 2 on: Nov 5, 2023
Great answer, keep it coming :)

ttt030911

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Reply 3 on: Yesterday
:D TYSM

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