CaCl2 is often used to melt ice on sidewalks. Could CaCl2 melt ice at –20°C? Assume that the solubility of CaCl2 at this temperature is 70.1 g CaCl2/100 g of H2O and that the van’t Hoff factor for a saturated solution of CaCl2 is 2.5.

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.