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Author Question: A 5.000 mL aqueous sample containing hydrogen peroxide was diluted to 25 mL and analyzed by ... (Read 52 times)

Mimi

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on: Jul 8, 2021

Question 1

A 5.00 mL sample of a nitric acid solution is titrated with 33.5 mL of 0.201 M NaOH. What is the molarity of the nitric acid solution?
◦ 0.0300 M
◦ 0.149 M
◦ 1.35 M
◦ 6.7 M
◦ 0.522 M

Question 2

A 5.000 mL aqueous sample containing hydrogen peroxide was diluted to 25 mL and analyzed by titration with permanganate:

2 MnO4-(aq) + 5 H2O2(aq) + 6 H+(aq) → 5 O2(g) + 2 Mn2+(aq) + 8 H2O(l)

The sample required 42.8 mL of 0.0175 M permanganate to reach the end point. What is the concentration of hydrogen peroxide in the original sample?
◦ 0.150 M
◦ 0.0748 M
◦ 0.375 M
◦ 0.0599 M
General Chemistry: Principles and Modern Applications ¦ Petrucci, Herring, Madura, Bissonnette ¦ 11th Edition
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Marked as best answer by Mimi on Jul 8, 2021

jxjsniuniu

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Reply #1 on: Jul 8, 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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Mimi

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Reply 2 on: Jul 8, 2021
Gracias!

xthemafja

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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