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If Ka is 1.85 x 10-5 for acetic acid, what is the pH of the solution at the equivalence point during a titration of 50.0 mL of 0.100 M acetic acid with 0.100 M NaOH?

a. 7.000
b. 8.716
c. 9.466
d. 2.866

Why must the pH meter be standardized (calibrated) prior to performing an experiment?

a. The results of the experiment would not be linear
b. The results of the experiment would be too high or too low
c. The pH meter will not operate

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