When `2.5g` of a sample of mohr's salt reacts completely with `50mL` of `N/10 KMnO_4` solution. The % purity of the sample of Mohr's salt is :

0.80g is impure (NH_4)SO_4) was boiled with 100mL of 0.2N NaOH solution till all the NH_3 (g) evolved. The remaining solution was diluted to 250mL. 25mL of this solution was neutralized using 5mL of 0.2 NH_2 SO_4 solution. The percentage purity of the (NH_4)_2SO_4 sample is :

25g of salt are present in 50g of solution. Calculate the mass percentage of the solute.

0.7g of (NH_(4))_(2)SO_(4) sample was boiled with 100mL of 0.2 N NaOH solution was diluted to 250 ml. 25mL of this solution was neutralised using 10mL of a 0.1 N H_(2)SO_(4) solution. The percentage purity of the (NH_(4))_(2)SO_(4) sample is :

A 20.0 mL solution containing 0.2 impure H_2O_2 reacts completely with 0.316 g of KMnO_4 in acid solution . The purity of H_2O_2 (in%) is ...........(mol .wt.of H_2O_2=34 , mol . Wt . Of KMnO_4 = 158 )

0.80g of impure (NH_(4))_(2) SO_(4) was boiled with 100mL of a 0.2N NaOH solution till all the NH_3 (g) evolved. the remaining solution was diluted to 250 mL . 25 mL of this 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:

0.2 g if a sample of H_2 O_2 required 10 ml of 1 N KMnO_4 for titration in acidic medium. The percentage purity of H_2 O_2 sample is:

An impure sample of sodium chloride that weighed 0.50 g gave 0.90 g of silver choride as precipitate on treatment with excess of silver nitrate solution. Calculate the percentage purity of the sample.

10g of salt is present in 50g of solution. Calculate the mass percentage of the solution.

A 0.46 g sample of As_(2)O_(3) required 25.0 " mL of " KMnO_(4) solution for its titration. The molarity of KMnO_(4) solution is

150 mL of N/10 HCI are required to react completely with 1.0 g of a sample of lime stone ( CaCO_3 ). Calculate the percentage purity of the sample.