Q11 of 26 Page 1

Calculate the freezing point of the solution when 31 g of ethylene glycol ( is dissolved in 500 g of water. ( for water is 1.86 K kg/mol)

The freezing point of pure water is 273.15 K, upon dissolving ethylene glycol the freezing point of water will be lowered.




Ms (molar mass) of the solute – Ethylene glycol


=


= 62


1.86 K


So, the freezing point of the solution is 273.15 K – 1.86 K = 271.89 K.


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