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Author Question: Calculate the pH of a 0.020 M carbonic acid solution, H2CO3(aq), that has the stepwise dissociation ... (Read 165 times)

Pineappleeh

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on: Feb 15, 2020

Question 1

What is the second stepwise equilibrium constant expression for phosphoric acid H3PO4?
◦ Ka2 = ([H3O+]2[HPO42-])/([H3PO4])
◦ Ka2 = ([H3O+][HPO42-])/([H2PO4-])
◦ Ka2 = ([H3O+][H2PO4-])/([H3PO4])
◦ Ka2 = ([H3O+]3[PO43-])/([H3PO4])

Question 2

Calculate the pH of a 0.020 M carbonic acid solution, H2CO3(aq), that has the stepwise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11.
◦ 6.37
◦ 1.70
◦ 10.25
◦ 4.03
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by Pineappleeh on Feb 15, 2020

hugthug12

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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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Pineappleeh

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Reply 2 on: Feb 15, 2020
Excellent

ttt030911

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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