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Question 99

Multiple Choice

Starting with 0.250L of a buffer solution containing 0.250 M benzoic acid (C6H5COOH) and 0.20 M sodium benzoate (C6H5COONa) , what will the pH of the solution be after the addition of 25.0 mL of 0.100M HCl (Ka (C6H5COOH) = 6.5 x 10-5)


A) 4.19
B) 4.10
C) 4.28
D) 4.05
E) 3.78

Correct Answer:

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