ОХ259 The salt solution is oxidized in the presence of

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259. The salt solution is oxidized in the presence of FeSO4 H2SO4 potassium dichromate by the equation:
FeSO4 + K2Cr2O7 + H2SO4 → Fe2 (SO4) 3 + Cr2 (SO4) 3 + K2SO4 + H2O.
Costavte material and the electron balance equation, and determine how many grams FeSO4 can be oxidized with 100 ml 0.25 N solution of potassium dichromate.

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