ph value

| December 3, 2015

What is the pH of 10.0 mL solution of 0.75 M acetate after adding 5.0 mL of 0.10 M HCl (assume a Ka of acetic acid of 1.78×10-5 )?

A. 3.60

B. 3.87

C. 5.90

D. 5.62

E. 4.45

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