The pH of 0.1 M solution of cyanic acid (HCNO) is 2.34. Calculate the ionisation constant of the acid and its degree of ionisation in the solution.
Derive an expression for the degree of hydrolysis of NH4Cl.
The pH of 0.1 M monobasic acid is 4.50. Calculate the concentration of species H+, A– and HA at equilibrium. Also, determine the values of Ka and pKa of the monobasic acid. A and HA at equilibrium. Also, determine the values of Ka and pKa of the monobasic acid.
(i) NH4NO3 solution is acidic, as it is a salt of the strong acid and a weak base, having pH < 7.
(ii) NaCN, NaNO2, KF solutions are basic, as they are salts of a strong base and a weak acid, having pH > 7.
(iii) NaCl, KBr solutions are neutral, as they are the salts of a strong acid and strong base, having pH = 7.