2. A solution of I2 was standardized with ascorbic acid. Using a 0.1000-g sample of pure ascorbic acid, 25.32 mL of I2 were required to reach the starch end point.

Question

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

DrBob222 · Answer

1 mol ascorbic acid reacts with 1 mol I2 so the ratio is 1:1. mols ascorbic acid = grams/molar mass = ? mols I2 = mols ascorbic acid from the equation. M I2 = mols I2/L I2.