Question:
An aqueous solution of 2% (wt/wt) non-volatile solute exerts a pressure of 1.004 bar at the boiling point of the solvent. What is the molecular mass of the solute?
An aqueous solution of 2% (wt/wt) non-volatile solute exerts a pressure of 1.004 bar at the boiling point of the solvent. What is the molecular mass of the solute?
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To calculate molar mass using colligative properties, use the relation between vapor pressure lowering and the molar mass of the solute.
Updated On: Apr 1, 2025
- 0.3655
- 36.55
- 41.34
- 40.16
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The Correct Option is C
Solution and Explanation
Using Raoult's Law and the formula for boiling point elevation, the change in vapor pressure can be used to calculate the molar mass of the solute.
The molecular mass is found to be 41.34.
The molecular mass is found to be 41.34.
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