Balance the following redox reaction if it occurs in basic solution. What are th

Question

Balance the following redox reaction if it occurs in basic solution. What are the coefficients in front of Cr(OH)4- and ClO- in the balanced reaction?

Cr(OH)4-(aq) + ClO-(aq) ? CrO42-(aq) + Cl-(aq)

Balance the following redox reaction if it occurs in basic solution. What are the coefficients in front of Cr(OH)4- and ClO- in the balanced reaction?

Cr(OH)4-(aq) + ClO-(aq) ? CrO42-(aq) + Cl-(aq)

Cr(OH)4- = 6, ClO- = 5 Cr(OH)4- = 1, ClO- = 2 Cr(OH)4- = 2, ClO- = 6 Cr(OH)4- = 1, ClO- = 1 Cr(OH)4- = 2, ClO- = 3

Explanation / Answer

Cr(OH)4- = CrO42- + 4 H+ + 3e-
ClO- + 2 H+ + 2e= Cl- + H2O

2 Cr(OH)4- + 3 ClO- = 2 CrO42- + 3 Cl- + 3 H2O + 2H+

2 Cr(OH)4- + 3 ClO- + 2 OH- = 2 CrO42- + 3 Cl- + 5 H2O

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