Experimentally, 9.85 mL is collected from the burette.

Calculation of the purity of the raw material:

mass exp. ascorbic acid = 43mg

percentage of purity of the raw material in ascorbic acid = 96.63
However, raw material content must be between 99.0 and 101.0% (desiccated substance) according to the pharmacopoeia. In the pharmaceutical industry, this batch would be discarded due to its non-compliance. It must be pointed out that the manual handling error is higher in tutorials than in the pharmaceutical industry!
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