Multiple Choice
How many moles of benzoic acid, a monoprotic acid with Ka = 6.4 × 10-5, must be dissolved in 500. mL of H2O to produce a solution with pH = 2.50?
A) 1.6 × 10-1
B) 2.0 × 10-2
C) 7.8 × 10-2
D) 0.50
E) none of these
Correct Answer:
Verified
Correct Answer:
Verified
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