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Calculate the PH of a 0

Question 1

Multiple Choice

Calculate the pH of a 0.020 M carbonic acid solution,H2CO3(aq) ,that has the stepwise dissociation constants Ka1 = 4.3 × 10-7 and Ka2 = 5.6 × 10-11.


A) 1.70
B) 4.03
C) 6.37
D) 10.25

Correct Answer:

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