Q:4 To determine the molar mass of a solid monoprotic acid ,a student titrated a weighted sample of the acid with standardized aqueous NaOH. Which of the following could explain why the student obtained a molar mass that was too large?
(a) Failure to rinse all the acid from weighing paper into the titration vessel.
(b) Addition of more water than was needed to dissolve the acid.
(c) Addition of some base beyond the equivalence point.
(d) Weighing more acid than used in calculation.
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