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A sample containing H 2 C 2 O 4 was dissolved and all of

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A sample containing H2C2O4 was dissolved and all of

A sample containing H2C2O4 was dissolved and all of it used in a redox titration. What mass of H2C2O4 was in the sample if it required 26.37 mL of 0.1420 M MnO4to react completely with H2C2O4? They interact according to the redox reaction below.

5 H2C2O4 (aq) + 2 (MnO4)- (aq) + 6 H+ (aq) -> 10 CO2 + 2 Mn2 + 8 H2O
 

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It looks like you got everything you need.

How many moles is 26.37 mL of 0.142 M MnO4?
 

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