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Question
A 0.10 Msolution of a weak monoprotic acid has a hydronium-ion concentration of 4.2 x 10-4M. What is the acid-ionization constant, Ka, for this acid?
A) 2.0 x 10-2
B) 2.9 x 10-3
C) 4.2 x 10-4
D) 1.8 x 10-6
E) 5.0 x 10-5
Answer
This answer is hidden. It contains 1 characters.
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