What Is the Vapor Pressure at 20°C of an Ideal

question 18

Multiple Choice

What is the vapor pressure at 20°C of an ideal solution prepared by the addition of 1.36 g of the nonvolatile solute urea,CO(NH₂) ₂,to 24.1 g of methanol,CH₃OH? The vapor pressure of pure methanol at 20°C is 89.0 mmHg.

• A)2.6708 mmHg
• B)80.4 mmHg
• C)84.2 mmHg
• D)86.3 mmHg
• E)8.51 mmHg

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