General Questions
These questions are not explicitly keyed to chapter topics; many require integration of several concepts.
Vitamin C is ascorbic acid, HC6H7O6, which can be titrated with a strong base.
In a laboratory experiment, a student dissolved a 500.0-mg vitamin C tablet in 200.0 mL water and then titrated it with 0.1250-M NaOH. It required 21.30 mL of the base to reach the equivalence point. What percentage of the mass of the tablet is impurity?
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