Excess I2 can be used to determine vitamin C levels in solution. Vitamin C (ascorbic acid) reacts in the following manner:
C6H8*6 (aq) + I2 --> C6H6O6 (aq) + 2H^+ (aq) + 2I^- (aq)
If 40.00mL of 0.4445M I2 was added to a sample containing vitamin C, the unused I2, required 23.95mL of .197M S2O3^2- to react. How many moles of vitamin C were originally present?