Question

Which of the following will occur if a 1.0 M solution
of a weak acid is diluted to 0.01 M at constant
temperature:
(1) Percentage ionisation will increase
(2) (H) will decrease to 0.01M
(3) K will increase
(4) pH will decrease by 2 units​

Answer 1

Answer:

1) Percentage ionisation will increase is the correct answer

Answer 2

Answer:

1) Percentage ionisation will increase

Explanation:

Percentage ionisation is directly proportional to the square of dilution according to Ostwald's Dilution Law.

In fact, at infinite dilution, even a weak acid can be completely dissociated.