Compute the mass of the solvent

Reference no: EM13170612

1. A 2.00 g sample of a particular compound was dissolved in 15.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85ºC.

For pure CCl4, TB = 76.50ºC and KB = 5.03°C·kg/mol.

Calculate the boiling point elevation, ?TB, for this solution.

2. Use the KB given in the problem information above and the boiling point elevation calculated in problem 1, calculate the molality of this solution (in mol solute/kg solvent).

3. Calculate the mass of the solvent (CCl4) in kg.

4. Use the molality calculated in question 2 and the solvent mass calculated in question 3 to determine the number of moles of solute present in this solution.

5. Use the mass of solute given in the problem information (2.00 g) and the moles of solute calculated in question 4 to determine the molar mass of the solute.

Reference no: EM13170612

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