0.19 g of a improve `H_(2)O_(2)` sample is dissolve din a 20 mL solution. 0.316g of the solution reacts completely with `KMnO_(4)` in presence of `H_(2)SO_(4)`. Find the purity of `H_(2)O_(2)` sample.

0.2 g of a sample of H_(2)O_(2) required 10 mL of 1 N KMnO_(4) in a titration in the presence of H_(2)SO_(4) Purity of H_(2)O_(2) is :

0.2 g of a sample of H_(2)O_(2) required 10 mL of 1 N KMnO_(4) in a titration in the presence of H_(2)SO_(4) Purity of H_(2)O_(2) is :

5 g sample contain only Na_(2)CO_(3) and Na_(2)SO_(4) . This sample is dissolved and the volume made up to 250 mL. 25 mL of this solution neutralizes 20 mL of 0.1 M H_(2)SO_(4) . Calcalute the % of Na_(2)SO_(4) in the sample .

5 g sample contain only Na_(2)CO_(3) and Na_(2)SO_(4) . This sample is dissolved and the volume made up to 250 mL. 25 mL of this solution neutralizes 20 mL of 0.1 M H_(2)SO_(4) . Calcalute the % of Na_(2)SO_(4) in the sample .

5 g sample contain only Na_(2)CO_(3) and Na_(2)SO_(4) . This sample is dissolved and the volume made up to 250 mL. 25 mL of this solution neutralizes 20 mL of 0.1 M H_(2)SO_(4) . Calcalute the % of Na_(2)SO_(4) in the sample .

0.80g of impure (NH_(4))_(2) SO_(4) was boiled with 100mL of a 0.2N NaOH solution was neutralized using 5mL of a 0.2N H_(2)SO_(4) solution. The percentage purity of the (NH_(4))_(2)SO_(4) sample is:

A solution of 0.4 g sample of H_(2)O_(2) reacted with 0.632 g of KMnO_(4) in presence of sulphuric acid. The percentage purity of the sample of H_(2)O_(2) is :