Solution: A glucose solution contains 71.8 g of glucose (C6H12O6) in 471 g of water.Determine the boiling point of the solution.

Problem

A glucose solution contains 71.8 g of glucose (C6H12O6) in 471 g of water.

Determine the boiling point of the solution.

Solution

We have to determine the boiling point of a solution made by dissolving 71.8 g of glucose (C6H12O6) in 471 g of water.


When a nonvolatile solute is dissolved in a solvent, the boiling point of the resulting solution is always higher than the boiling point of pure solvent. This property of solutions is called the boiling point elevation.


We will solve this problem through these steps:

Step 1: Find the molality of glucose in solution.

Step 2: Use the formula for boiling point elevation to calculate boiling point of solution.


Step 1: Find the molality of glucose in solution.

Molality is calculated using this formula:

molality = moles of solutekg of solvent

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