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How many mL of 0.122 M MnO4 - are required to react with an excess of...

How many mL of 0.122 M MnO4 - are required to react with an excess of C2O4 2- in order to produce 75.25 mL of carbon dioxide gas measured at 30.0 C and 715 Torr?

MnO4 - (aq) + C2O4 2- (aq) --> MnO2 (s) + CO2 (g) (basic solution)

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