pKa of Carboxylic Acids. Errors in experimental procedures. Assume the pH probe

Question

pKa of Carboxylic Acids. Errors in experimental procedures. Assume the pH probe you are using for the titration of benzoic acid was not calibrated properly. Which statement below would be correct in all cases?

A. The equivalence point pH would be less than it should be

B. There is no way of knowing how the titration would be affected in this case

C. The molecular mass calculated for benzoic acid would be greater than the actual value

D. The amount of titrant added would be less than theoretical

E. The volume of titrant in the buret would be more than needed

Explanation / Answer

C. The molecular mass calculated for benzoic acid would be greater than the actual value

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