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How Many Moles of Benzoic Acid,a Monoprotic Acid with Ka ×\times

Question 107

Multiple Choice

How many moles of benzoic acid,a monoprotic acid with Ka = 6.4 ×\times 10-5,must be dissolved in 250.mL of H2O to produce a solution with pH = 2.04?


A) 1.3
B) 0.00228
C) 0.32
D) 36
E) none of these

Correct Answer:

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