Equilibrium Question 498

Question: If the dissociation constant of an acid HA is 1×105, the pH of a 0.1 molar solution of the acid will be approximately [NCERT 1979]

Options:

A) Three

B) Five

C) One

D) Six

Show Answer

Answer:

Correct Answer: A

Solution:

[H+]=Kc=105×0.1=103,,pH=3 .



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