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The vitamin C (C6O6H8) content of a fruit cordial is to be analysed. A total of...

The vitamin C (C6O6H8) content of a fruit cordial is to be analysed. A total of 1.200 g of KIO3 is added to a 250.00 cm3 flask. KI is added in excess and the solution acidified by the addition of dilute acid. Twenty cubic centimetre aliquots of vitamin C require 25.3 cm3 of a 0.05 M sodium thiosulfate solution for equivalence. Calculate the concentration of vitamin C within the cordial. Given C6O6H8 + I2 C6O6H6 + 2H+ + 2I

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