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Question 14 4 pts 14) What is the vapor pressure at 22°C of an ideal solution prepared by the addition of 4.87 g of the nonvolatile solute urea, CO(NH$_2$)$_2$, to 70.0 g of methanol, CH$_3$OH? The vapor pressure of pure methanol at 22°C is 93.0 mmHg. Use Roult's Law: Lowering of pressure (Colligative property) 82.8 mmHg 85.6 mmHg 9.25 mmHg 89.7 mmHg 78.1 mmHg

          Question 14
4 pts
14) What is the vapor pressure at 22°C of an ideal solution prepared by the
addition of 4.87 g of the nonvolatile solute urea, CO(NH$_2$)$_2$, to 70.0 g of
methanol, CH$_3$OH? The vapor pressure of pure methanol at 22°C is 93.0
mmHg. Use Roult's Law: Lowering of pressure (Colligative property)
82.8 mmHg
85.6 mmHg
9.25 mmHg
89.7 mmHg
78.1 mmHg

Question 14
4 pts
14) What is the vapor pressure at 22°C of an ideal solution prepared by the
addition of 4.87 g of the nonvolatile solute urea, CO(NH2)2, to 70.0 g of
methanol, CH3OH? The vapor pressure of pure methanol at 22°C is 93.0
mmHg. Use Roult's Law: Lowering of pressure (Colligative property)
82.8 mmHg
85.6 mmHg
9.25 mmHg
89.7 mmHg
78.1 mmHg

Added by Mark H.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Adi S

Step 1

Mole fraction (X) is calculated by dividing the moles of the solute by the total moles of the solution. To find the moles of urea, we divide the given mass of urea by its molar mass. The molar mass of urea (CONH2) is 60.06 g/mol. moles of urea = mass of urea Show more…

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What is the vapor pressure at 22Â°C of an ideal solution prepared by the addition of 4.87 g of the nonvolatile solute urea, CONH2, to 70.0 g of methanol, CHOH? The vapor pressure of pure methanol at 22Â°C is 93.0 mmHg. Use Raoult's Law (Lowering of pressure - Colligative property). 82.8 mmHg 85.6 mmHg 9.25 mmHg 89.7 mmHg 78.1 mmHg