Chapter 19, Problem 64AP

The oxidation of 25.0 mL of a solution containing ${\text{Fe}}^{\text{2+}}$ requires 26.0 mL of 0.0250 M ${\text{K}}_{\text{2}}{\text{Cr}}_{\text{2}}{\text{O}}_{\text{7}}$ in acidic solution. Balance the following equation, and calculate the molar concentration of ${\text{Fe}}^{\text{2+}}$:

${\text{CrO}}_7^{2-}+{\text{Fe}}^{\text{2+}}+{\text{H}}^{\text{+}}\to {\text{Cr}}^{\text{3+}}+{\text{Fe}}^{\text{3+}}$