Multiple Choice
The pKa of a certain weak acid is 4.0. Calculate the ratio of proton acceptor to proton donor at pH 7.0.
A) 1000:1
B) 20:1
C) 3:1
D) 1:1
E) The ratio cannot be calculated without knowing the structure of the weak acid.
Correct Answer:

Verified
Correct Answer:
Verified
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