Chapter 43

Write a balanced equation for the reaction between \(\mathrm{I}_{2}\) and ascorbic acid. Identify the oxidizing agent and the reducing agent.

A solution of \(\mathrm{I}_{2}\) was standardized with ascorbic acid. Using a 0.1000-g sample of pure ascorbic acid, \(25.32 \mathrm{mL}\) of \(\mathrm{I}_{2}\) were required to reach the starch end point. a. What is the molarity of the iodine solution? ___________\(\text{M}\) b. What is the titer of the iodine solution? ____________\(\mathrm{mg}\) asc/mL \(\mathrm{I}_{2}\)