Aquality control chemist is checking the vitamin c (ascorbic acid, chgo) content in chewable tablets. the 2.50g tablet is dissolved in 50.0 ml di h20, and titrated with 39.58 ml 0.250 m 12 (iodine) solution to endpoint, according to the equation below. what was the initial concentration of vitamin c? what is the final concentration of iodide? what is the mass percent vitamin c in the tablet? hâo + c hâo6 + 12 c hâ007 + 2r volume molarity moles