Question

What is the vapor pressure at 20 °C of an ideal solution prepared by the addition of 9.03 g of the nonvolatile solute urea, CO(NH2)2, to 34.1 g of methanol, CH3OH? The vapor pressure of pure methanol at 20 °C is 89.0 mm Hg. a. 11.028 mm Hg b. 59.4 mm Hg c. 70.3 mm Hg d. 77.9 mm Hg e. 29.5 mm Hg

Name: what is the vapor pressure at 20 c of an ideal solution prepared by the addition of 903 g of the nonvolatile solute urea conh22 to 341 g of methanol ch3oh the vapor pressure of pure methanol 84019
Uploaded: 2022-03-29T11:29:25-08:00
Duration: 4 min 47 s
Channel: Shaiju T
Description: what is the vapor pressure at 20 c of an ideal solution prepared by the addition of 903 g of the nonvolatile solute urea conh22 to 341 g of methanol ch3oh the vapor pressure of pure methanol 84019

          What is the vapor pressure at 20 °C of an ideal solution
prepared by the addition of 9.03 g of the nonvolatile solute urea,
CO(NH2)2, to 34.1 g of methanol, CH3OH? The vapor pressure of pure
methanol at 20 °C is 89.0 mm Hg.
a. 11.028 mm Hg
b. 59.4 mm Hg
c. 70.3 mm Hg
d. 77.9 mm Hg
e. 29.5 mm Hg

Added by Douglas H.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert Shaiju T

03/29/2022

Step 1

1 g Molar mass of methanol (CH3OH) = 32.04 g/mol Mole fraction of methanol (XA) = (moles of methanol) / (total moles) moles of methanol = 34.1 g / 32.04 g/mol = 1.064 mol moles of urea = 9.03 g / 60.06 g/mol = 0.150 mol Total moles = 1.064 mol + 0.150 mol = 1.214 Show more…

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What is the vapor pressure at 20 °C of an ideal solution prepared by the addition of 9.03 g of the nonvolatile solute urea, CO(NH2)2, to 34.1 g of methanol, CH3OH? The vapor pressure of pure methanol at 20 °C is 89.0 mm Hg. a. 11.028 mm Hg b. 59.4 mm Hg c. 70.3 mm Hg d. 77.9 mm Hg e. 29.5 mm Hg