114. Solving a chemistry problem
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114. Solving a chemistry problem
A portion of iodoform CHI3 weighing 0.3501 g, containing indifferent impurities, was dissolved in ethanol and 40.00 ml of a 0.1082 M solution of silver nitrate and concentrated nitric acid were added. The excess of silver nitrate was titrated with 18.20 ml of KSCN solution with a titer of 0.009699 g/ml. Determine the mass fraction (%) of iodoform in the sample if M(CHI3) = 393.72 g/mol.
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