Hydrolysis of Salts

Chemistry ⇒ Acids, Bases, and Salts

Hydrolysis of Salts starts at 10 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Hydrolysis of Salts. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.

See sample questions for grade 11

A 0.1 M solution of ammonium acetate is prepared. If K_a (acetic acid) = 1.8 \times 10^{-5} and K_b (ammonia) = 1.8 \times 10^{-5}, what is the pH of the solution?

A solution contains 0.1 M sodium acetate. Calculate the concentration of OH^{-} ions. (K_a for acetic acid = 1.8 \times 10^{-5}, K_w = 1.0 \times 10^{-14})

A solution of FeCl₃ is found to be acidic. Explain why.

Calculate the hydrolysis constant (K_h) for a 0.1 M solution of ammonium acetate (NH_{4}CH_{3}COO) if K_a (acetic acid) = 1.8 \times 10^{-5} and K_b (ammonia) = 1.8 \times 10^{-5}. (K_w = 1.0 \times 10^{-14})

Calculate the pH of a 0.1 M solution of sodium acetate (CH_{3}COONa). (Given: K_a for acetic acid = 1.8 \times 10^{-5}, K_w = 1.0 \times 10^{-14})

Describe the effect of temperature on the degree of hydrolysis of salts.

Describe the process of hydrolysis for the salt ammonium acetate (NH₄CH₃COO).

Explain why the aqueous solution of ammonium chloride (NH₄Cl) is acidic.

Explain why the pH of a solution of potassium nitrate (KNO₃) is neutral.

Explain why the solution of sodium carbonate (Na₂CO₃) is basic.

Explain why the solution of sodium chloride does not undergo hydrolysis.

What is meant by the hydrolysis of a salt?

Write the hydrolysis reaction for the acetate ion (CH_{3}COO^{-}) in water.

A 0.2 M solution of sodium cyanide (NaCN) is prepared. Given that the K_a of HCN is 4.9 \times 10^{-10} and K_w is 1.0 \times 10^{-14} at 25^{\circ}C, calculate the pH of the solution.

A solution contains 0.05 M sodium benzoate (C_{6}H_{5}COONa). The K_a of benzoic acid is 6.3 \times 10^{-5}. Calculate the degree of hydrolysis (\alpha) of the salt at 25^{\circ}C. (K_w = 1.0 \times 10^{-14})

Explain why the pH of a solution of ammonium formate (NH_{4}HCOO) can be acidic, basic, or neutral depending on the values of K_a and K_b.

Explain, with equations, why the solution of aluminum chloride (AlCl_{3}) in water is acidic.