the titration of an ascorbic acid requires 18.5 mL of .0105 M KIO3. how many mmol of ascorbic acid were in this sample?

Answer 1

IO3^- + 6H^+ + 5I^- ==> 3I2 + 3H2O
C6H8O6 + I2 ==> C6H6O6 + 2I^- | 2H^+

mmols KIO3 = mL x M = ?
Use the coefficients in the balanced equations to convert mmols KIO3 to mmols ascorbic acid.
?mmol KIO3 x (3 mol I2/1 mol KIO3) x (1 mol I2/1 mol C6H8O6) = ?