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Calculate the pH of a solution containing 25.00 mL of 0.12 M formic acid (Ka = 1.7 x 10^-4) to which the following amounts of 0.10 M NaOH have been added:
a. 0.00mL
b 15.0 mL
c. 25.0mL
d. 29.9mL
e.30.0mL
f. 30.1mL
g. 31.0mL
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