Which of the following does not-do not represent the correct equivalent mass of Cr2O2-7 in the reaction Cr2O2-7- 14H- - 6e- 2Cr3- 7H2O-

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Atomic Mass

Which of the ...

Question

Which of the following does not/do not represent the correct equivalent mass of $C r_{2} O_{7}^{2 -}$ in the reaction $C r_{2} O_{7}^{2 -} + 14 H^{+} + 6 e^{-} 2 C r^{3 +} + 7 H_{2} O$ ?

The Molar mass of dichromate

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One third of the molar mass of dichromate

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One sixth of the molar mass of dichromate

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One half of the molar mass Of dichromate

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C r_{2} O_{7}^{2 -} + 14 H^{+} + 6 e^{-} \to 2 C r^{3 +} + 7 H_{2} O

C r_{2} O_{7}^{2 -}

n

C r_{2} O_{7}^{2 -} + n e^{-} + 14 H^{+} \to 2 C r^{3 +} + 7 H_{2} O

^{'} n^{'}

C r_{2} O_{7}^{2 -} + 14 H^{+} + + n F e^{2 +} \to 2 C r^{3 +} + n F e^{3 +} + 7 H_{2} O

C r_{2} O_{7}^{2 -}

C r^{3 +}

K_{2} C r_{2} O_{7}

C r_{2} O_{7}^{2 -} + 14 H^{+} + 6 e \to 2 C r^{3 +} + 7 H_{2} O

C r_{2} O_{7}^{2 -}^{+} C r^{3 +}

C r_{2} O_{7}^{2 -}

C r_{2} O_{7}^{2 -}

M g / m o l

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