Calculate normality of a salt solution [of a metal sulphate] having concetration 21.6% w/v if its superoxide has 16% by mass of oxygen.

Calculate the normality of 4% (w/v) solution of NaOH.

Calculate the molarity of 4% (w/v) NaOH solution.

Calculate normality of 0.6% (w/v) of H_2O_2 (aq)

Calculate the normality of solution of 4.9 % (w/v) of H_(2)SO_(4) .

Calculate the normality of solution of 4.9 % (w/v) of H_(2)SO_(4) .

Calculate the molarity of 10.6% (w/v) Na_2CO_3 solution.

The Normality of 0.98% (w/v) H_2SO_4 solution is

Calculate the amount of water by which 50 mL of a solution having concentration 20% w/v and density 2 g/mL should be diluted to obtain a solution of concentration 7.5% w/v:

A solution contains 31 g of common salt in 320 g of water. Calculate the concentration in terms of mass by mass percentage of the solution.

A solution contains 33 g of common salt in 320 g of water. Calculate the concentration in terms of mass, by mass percentage of the solution.