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Author Question: Which is the best acid to use in the preparation of a buffer with pH = 3.3? (Read 46 times)

Garrulous

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on: Feb 15, 2020

Question 1

What is not a correct expression for the weak acid HA?
◦ pKa = 14 - pKb
◦ pKa = logKa
◦ Ka = [H3O+][A-]/[HA]
◦ pKa = pH - log{[A-]/[HA]}

Question 2

Which is the best acid to use in the preparation of a buffer with pH = 3.3?
◦ HIO3 (Ka = 1.7 × 10-1)
◦ HNO2 (Ka = 4.5 × 10-4)
◦ HNO3
◦ HOI (Ka = 2.0 × 10-11)
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by Garrulous on Feb 15, 2020

nyrave

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Reply #1 on: Feb 15, 2020
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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Garrulous

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Reply 2 on: Feb 15, 2020
Thanks for the timely response, appreciate it

nyrave

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Reply 3 on: Yesterday
Gracias!

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