Problem: A 0.00202 M solution of weak acid, HA, has a pH of 4.36. What is the value of K  a for this acid?A. 9.43 x 10-7B. 1.05 x 10-6C. 2.21 x 10-2D. 9.64 x 10-7E. 2.16 x 10-2

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A 0.00202 M solution of weak acid, HA, has a pH of 4.36. What is the value of K  a for this acid?

A. 9.43 x 10-7

B. 1.05 x 10-6

C. 2.21 x 10-2

D. 9.64 x 10-7

E. 2.16 x 10-2