Find the volume of water required to prepare a decimolar solution of urea from 10ml of its 2M solution.

K_a for HCN is 5 xx 10^-10 at 25^@C . For maintaining a constant pH of 9. Find the volume of 5 M KCN solution required to be added to 10 mL of 2 M HCN solution.

How much urea must be dissolved in 250ml water to prepare a decimolar solution?

Find the mole fraction of 10% NaOH solution.

How is the molarity of a solution different from its molality ?

How many grams of glucose must be dissolved in 0.5 lit water for its osmotic pressure to be same us that of a solution of 12g urea in 250ml water.

The volume of 0.1 M H_2SO_4 required to neutralise 30 ml of 2.0 M NaOH is :

A current of 1.70 A is passed through 300.0 mL of 0.160 M solution of ZnSO_(4) for 230s with a current efficiency of 90 per cent. Find out the molarity of Zn^(2+) after the deposition of zinc. Assume the volume of the solution to remain constant during electrolysis.