First slide
Equivalent weights
Question

‘V’ litres of 0.5 M KMnO4 can completely oxidise 5 litres of 0.2 M sodium nitrite in acidic medium. The value of ‘V’ is

Moderate
Solution

V1N1(KMnO4)=V2N2(NaNO2) ;

V1(n1)M1=V2(n2)M2 ;

V(5)0.5=5(2)0.2 ; 

V= 0.8 litres ;

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