Refer to the galvanic cell below (the contents of each half-cell are written beneath each compartment) . The standard reduction potentials are as follows:
What is the oxidation state of Cr in Cr₂O₇^2-?

Question

Refer to the galvanic cell below (the contents of each half-cell are written beneath each compartment) .

The standard reduction potentials are as follows: Refer to the galvanic cell below (the contents of each half-cell are written beneath each compartment) . The standard reduction potentials are as follows: What is the oxidation state of Cr in Cr2O72-? A) +6 B) -2 C) +12 D) -1 E) +7

What is the oxidation state of Cr in Cr₂O₇^2-?

Quizplus · Accepted Answer

The oxidation state of sulfur in this compound is -2. The overall charge on the compound is 0. Let x be the oxidation state of Cr. Then, we have:
x + 2(-1) + 12(0) + (-1) + 17(-1) + 0 + 12(-1) = 0
x = +6
Therefore, the oxidation state of Cr in this compound is +6.

Refer to the Galvanic Cell Below (The Contents of Each