For {\Cr}_{2} {\O}_{7}^{2-}+14 {\H}^{+}+6 {e}^{-}\stackrel{\text{yields }{──── ▸ }} 2 {\Cr}^{3+} +7 {\H}_{2} {\O}, \E^\circ=1.33 {\V} at [{\Cr}_{2} {\O}_{7}^{2-}]=4.5 millimole, [{\Cr}^{3+}]=1.5 millimole and \E=1.067 {\V} , then calculate the {\pH} of the solution.

AP EAPCET 19-Aug-2021 Shift 2 Paper

Section: Chemistry

Question : 151 of 160

Marks: +1, -0

For Cr2O72−+14H++6e−

yields

────▸

2Cr3+ +7H2O,E°=1.33V at [Cr2O72−]=4.5 millimole, [Cr3+]=1.5 millimole and E=1.067V , then calculate the pH of the solution.

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