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in Chemistry by (61.3k points)

If a 0.01 M solution of a weak acid has a pH of 4.0, the pKa of the acid is: 

(A) 10.0 

(B) 8.0 

(C) 6.0 

(D) 4.0 

(E) 2.0

1 Answer

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Best answer

Correct option  (C)  6.0 

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