A base dissolved in water yields a solution with a hydroxide ion concentration of `0.05 mol litre^(-1)`. The solution is

Calculate the pH of solution containing hydroxide ion concentration of 10^(-2) mol dm^(-3) .

when 0.1 mole of ammonia is dissolved in sufficient water to make 1 litre of solution. The solution is found to have a hydroxide ion concentration of 1.34 xx 10^(-3) . The dissociation constant of ammonia is

when 0.2 mole of ammonia is dissolved in sufficient water to make 1 litre of solution. The solution is found to have a hydroxide ion concentration of 1.34 xx 10^(-3) . The dissociation constant of ammonia is

when excess of a base is dissolved in a solution of sodim hydroxide, the concetration of hydroxide ion in the solution decrease.

When pH of a solution is 2, the hydrogen ion concentration in moles "litre"^(-1) is .............