Experimentally, 9.85 mL is collected from the burette.
Calculation of the purity of the raw material:
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!