Define ionic product of water. Give its value at room temperature.

Explain common ion effect with an example.

Define pH.

Calculate the pH of 1.5\(\times\)10^-3 M solution of Ba(OH)₂

50ml of 0.05M HNO₃ is added to 50ml of 0.025M KOH. Calculate the pH of the resultant solution.

The K_a value for HCN is 10^-9. What is the pH of 0.4M HCN solution?

Calculate the extent of hydrolysis and the pH of 0.1 M ammonium acetate Given that \(K_{a}=K_{b}=1.8\times10^{-5}\)

Derive an expression for the hydrolysis constant and degree of hydrolysis of salt of strong acid and weak base.

Calculate the pH of 0.1M CH₃COOH solution. Dissociation constant of acetic acid is \(1.8\times10^{-5}\).

 Find the pH of a buffer solution containing 0.20 mole per litre sodium acetate and 0.18 mole per litre acetic acid. K_a for acetic acid is \(1.8\times10^{-5}\).