試題詳解

86. The solubility of CaCl2 in cold water is 74.5 g per 100.0 g water. Assuming i = 3.0 for CaCl₂, the freezing point for a saturated solution of CaCl₂ will be________˚C. (K_f = 1.86 °C kg/mol for water)
(A) 0
(B) –0.32
(C) –13
(D) –32
(E) –37.4