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Author Question: An antique automobile bumper is to be chrome plated. The bumper, which is dipped into an acidic ... (Read 220 times)

Redwolflake15

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on: Mar 21, 2021

Question 1

Ammonium metavandate reacts with sulfur dioxide in acidic solution as follows (hydrogen ions and H2O omitted):
              xVO3– + ySO2→ xVO2+ + ySO42–
The ratio x : y is

◦ 1 : 1
◦ 1 : 2
◦ 2 : 1
◦ 1 : 3
◦ 3 : 1

Question 2

An antique automobile bumper is to be chrome plated. The bumper, which is dipped into an acidic Cr

2

O

7

2-

solution, serves as a cathode of an electrolytic cell. The atomic mass of Cr is 51.996; 1 faraday = 96,485 coulombs. 

If oxidation of H2O occurs at the anode, how many moles of oxygen gas will evolve for every 107 grams of Cr(s) deposited?

Reference: Ref 18-6

​

​


◦ 2.97
◦ 0.495
◦ 11.9
◦ 7.92
◦ 2.64
Chemistry: An Atoms First Approach ¦ Zumdahl, DeCoste ¦ 3rd Edition
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Marked as best answer by Redwolflake15 on Mar 21, 2021

Andromeda18

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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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naiah

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Reply #2 on: May 24, 2021
thank you


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