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Determine the volume of M/10 KMnO4 solut...

Determine the volume of `M/10 KMnO_4` solution required to react completely with 25.0 mL of M/5 oxalic acid solution.

Text Solution

Verified by Experts

The balanced chemical equation is
`2KMnO_4+5(COOH)_2+3H_2SO_4rarr K_2SO_4+2MnSO_4+10CO_2+8H_2O`
From the balanced equation , it is clear that
2 mol of `KMnO_4 = 5 "mol of "(COOH)_2`
`[(M_1V_1)/n_1]_(KMnO_4)=[(M_2V_2)/n_2]_((COOH)_2)`
`1/10xxV_1/2=1/5xx(25.0)/5`
or `V_1=(25.0xx10xx2)/(5xx5)=20.0mL`
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