Carbon disulfide (CS 2 ) boils at 46 30 C and has a density of 1 261 g mL (a) When 0 250 mol of a non dissociating solute is dissolved in 400 0 mL of CS 2 , the solution boils at 47 46 C What is the molal boiling point elevation constant for CS 2 (b) When 5 39 g of a non dissociating unknown is dis...

To solve this problem we can use the formula for the boiling point elevation of a solvent Tb Kb m wh ...

Carbon disulfide (CS 2 ) boils at 46.30 C and has a density of 1.261 g/mL. (a)

Question:

Carbon disulfide (CS₂) boils at 46.30 °C and has a density of 1.261 g/mL. (a) When 0.250 mol of a non dissociating solute is dissolved in 400.0 mL of CS₂, the solution boils at 47.46 °C. What is the molal boiling-point-elevation constant for CS₂? (b) When 5.39 g of a non dissociating unknown is dissolved in 50.0 mL of CS₂, the solution boils at 47.08 °C. What is the molar mass of the unknown?

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