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Author Question: A cell based on the reaction below has a standard potential of +0.42 V at 25C. If all of the species ... (Read 61 times)

Garrulous

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on: Feb 15, 2020

Question 1

The following cell has a potential of 0.45 V at 25°C.

Pt(s) ∣ H2(1 atm)|H+(? M) ∣∣ Cl-(1 M) ∣ Hg2Cl2(s)|Hg(l)


The standard half-cell potential for the half-reaction Hg2Cl2(s) + 2 e- → 2 Hg(l) + 2 Cl-(aq) is 0.28 V. What is the pH in the anode compartment?
◦ 4.7
◦ 7.6
◦ 12.3
◦ 2.9

Question 2

A cell based on the reaction below has a standard potential of +0.42 V at 25°C. If all of the species are at standard conditions except [H+], at what pH will the cell have a potential of zero?

H2O2(aq) + 2 H+(aq) + 2 Cl-(aq) → Cl2(aq) + 2 H2O(l)


◦ 14.2
◦ 10.6
◦ 3.55
◦ 7.09
Chemistry ¦ McMurry, Fay, Robinson ¦ 7th Edition
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Marked as best answer by Garrulous on Feb 15, 2020

wilsonbho

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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
Great answer, keep it coming :)

nanny

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Reply 3 on: Yesterday
Gracias!

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