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Chemistry LibreTexts

Optional Experiment

Vitamin C (i.e., ascorbic acid) dietary supplement 300 mg or 500 mg pills can be substituted in place of the fruit juice as the analytical sample. It is necessary to grind the pills to a powder and weigh the amount to give an estimated 1 – 2 mM solution in pH 2 buffer. Some filler material in the pills may be insoluble.