Water has a molal freezing point constant of 1.86°C kg/mol.  Calculate the freezing point of 37.378 grams of calcium chloride (CaCl2) in 116.149 grams of water.  Assume complete dissociation.

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Water has a molal freezing point constant of 1.86°C kg/mol.  Calculate the freezing point of 37.378 grams of calcium chloride (CaCl2) in 116.149 grams of water.  Assume complete dissociation.

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Step 1

Given 

molal freezing point constant of  water = 1.86℃ kg/mole

Mass of CaCl2  = 37.378 gram 

Mass of Solvent(water) = 116.149 gram 

                                     = 116.149 × 10-3 kg 

                                     = 0.116149 kg 

Freezing point of mixture = ? 

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