Answers

2014-08-03T11:35:48+08:00
Molality = mol of solute / kg of solvent Mol of solute = 15.4 g C2H6O2 × ( 1 mol / 62 g of C2H6O2) Mol of solute = 0.248 mol Kg of solvent = 84.6 g of H2O or 0.0846 kg of H2O Molality = (0.248 mol) / (0.0846 kg) = 2.931 molal
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