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Consider the reaction: Cr2O7^2- + 14H^+ ...

Consider the reaction: `Cr_2O_7^2- + 14H^+ + 6e^- rarr 2Cr^(3+) + 7H_2O` What is the quantity of electricity in coulombs needed to reduce 1 mol of `Cr_2O_7^(2-)`?

A

2

B

3

C

5

D

4

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