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Could CaCl2 melt ice at -20°C? Assume that the solubility of CaCl2 at this temperature is about 50.0 g/100.0 g of H2O and that the van 't Hoff factor for a saturated solution of CaCl2 is 2.50. (Kf for
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Could CaCl2 melt ice at -20°C? Assume that the solubility of CaCl2 at this

temperature is about 50.0 g/100.0 g of H2O and that the van 't Hoff factor for a saturated
solution of CaCl2 is 2.50. (Kf for water is 1.86°C/m)

User Qingfei Yuan
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1 Answer

4 votes

Answer:

Calcium chloride cannot melt the ice at -20°C. Cryoscopy is the method of determining a decrease in melting point due to dissolved substances.

User Count Chocula
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