Ascorbic acid vitamin c is a diprotic acid having the, Ask an Expert

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Ascorbic acid (vitamin C) is a diprotic acid having the formula H2C6H6O6. Asample of a vitamin supplement was analyzed by titrating a 0.1500 gsample dissolved in water with 0.0240 M NaOH. A volume of 16.50 mL of the base was required to completely neutralize the ascorbic acid. What was the percentage by mass of ascorbic acid in the sample ?

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