In a redox titration: only 0.275 g of pure Ascorbic acid C6H8O6 (M.wt. = 176.12 g/mol) were dissolved in 25.00 mL and required 43.50 mL of iodine to reach the end point and produce a 65.33 mL of iodide. What is the molar concentration of the iodine solution? The chemical reaction is:
C6H8O6 + I2 ------> C6H6O6 + 2H+ + 2I-