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Question
A 0.10 M aqueous solution of a weak acid HA has a pH of 5.00. What is the value of Ka for HA?
A) 1.0 x 10-8
B) 1.0 x 10-6
C) 1.0 x 10-7
D) 1.0 x 10-5
E) 1.0 x 10-9
Answer
This answer is hidden. It contains 1 characters.
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Q:
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Q:
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Q:
For a certain first-order reaction with the general form aA → products, the rate is 0.32 M·s-1 when the concentration of the reactant is 0.29M. What is the rate constant for this reaction?A) 0.26 s-1B) 1.1 s-1C) 0.32 s-1D) 3.1 s-1E) 3.8 s-1