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What Is Ka for a Weak Monoprotic Acid If a 0.020

Question 47

Multiple Choice

What is Ka for a weak monoprotic acid if a 0.020 M solution of the acid has a pH of 3.28 at 25°C?


A) 5.2 × 10-2
B) 1.4 × 10-5
C) 7.1 × 10-2
D) 1.0 × 10-6
E) 2.8 × 10-4

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