Problem- Warfarin (C19H16O4, 308.34 g/mol) converted to CHI3. One mole of CHI3 was produced for each mole of warfarin that reacted. The collected CHI3 was reacted with silver to precipitate the iodine as AgI according to the following reaction.
CHI3 + 3Ag+ + H2O ? 3AgI(s) + 3H+ + CO(g)
The CHI3 produced from a 13.96 g sample was treated with 25.00 mL of 0.02979 M AgNO3. The excess Ag+ was then titrated with 2.38 mL of 0.05411 M KSCN. Calculate the concentration warfarin in the sample expressed as mg/kg.
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