# Vitamin K is involved in normal blood clotting.When 2.19 g of vitamin K is dissolved in 25.0 g of camphor, the freezing point of the solution is lowered by 7.33 °C. Look upthe freezing point and Kf constant for camphor in the Colligative Constants table.Calculate the molar mass of vitamin K.molar mass:g/mol Colligative ConstantsConstants for freezing-point depression and boiling-point elevation calculations at 1 atm:Formula K, value* Normal freezing K, value Normal boilingpoint (°C)Solvent(°C/m)(°C/m)point (°C)waterH201.860.000.512100.00benzeneC6H65.125.492.5380.1cyclohexane C6H1220.86.592.9280.7ethanol-117.3C2H60CCIA1.991.2278.4carbon29.8-22.95.0376.8tetrachloridecamphorC10H160 37.8176

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Depression or lowering in freezing point is one of the colligative properties of a solution which depends upon the intermolecular attractive forces between solvent molecules. The expression for lowering in freezing point is given below.

Where, i is known as van’t Hoff factor and it is the total number of ions or solute particles of an electrolyte produced when it dissolves in a solution. kf is the freezing point depression constant, m i...

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