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Author Question: You have a 250.-mL sample of 1.04 M acetic acid (Ka = 1.8 105). Calculate the pH of the best buffer. (Read 86 times)

joe

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on: Mar 21, 2021

Question 1

You have 75.0 mL of 0.19 M HA. After adding 30.0 mL of 0.10 M NaOH, the pH is 5.50. What is the Ka value of HA?

◦ 3.2 × 10–6
◦ 8.4 × 10–7
◦ 0.27
◦ 6.7 × 10–7
◦ None of these are correct.

Question 2

You have a 250.-mL sample of 1.04 M acetic acid (Ka = 1.8 × 10–5). Calculate the pH of the best buffer.

◦ 7.00
◦ 4.74
◦ 4.15
◦ 9.26
◦ None of these are correct.
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Marked as best answer by joe on Mar 21, 2021

katkat_flores

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Reply #1 on: Mar 21, 2021
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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joe

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Reply 2 on: Mar 21, 2021
Excellent

juliaf

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Reply 3 on: Yesterday
Wow, this really help

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