A solution of I2was standardized with ascorbic acid. Using a 0.1000-g sample of pure ascorbic acid, 25.32 mL of I2 Are required to reach the starch end point. (a)What is the molarity of the iodine solution

0.02244 M is the molarity of the iodine solution.

Explanation:

Ascorbic acid + → dehydroascorbic acid +

Moles of ascorbic acid =

According to reaction, 1 mole of ascorbic acid reacts with 1 mole Then 0.0005682 mole of ascorbic caid will :

of solution

Moles of solution = 0.0005682 mol

Volume solution = 25.32 mL = 0.02532 L( 1 mL= 0.001 L)

Molarity of the solution :

0.02244 M is the molarity of the iodine solution.

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