Equilibrium Question 456

Question: In a mixture of a weak acid and its salt, the ratio of concentration of acid to salt is increased ten-fold. The $ pH $ of the solution [KCET 1996]

Options:

A) Decreases by one

B) Increases by one-tenth

C) Increases by one

D) Increases ten-fold

Show Answer

Answer:

Correct Answer: A

Solution:

$ [{H^{+}}] $ = increased ten fold means pH of solution decreased by one. $ pH=log\frac{1}{[{H^{+}}]} $



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