Question

What is the vapor pressure at 75°C of an aqueous solution prepared by the addition of 84.3 g of the nonvolatile solute urea, CO(NH2) 2, to 194 g of water? The vapor pressure of pure water at 75°C is 290 mmHg. Select one: a. 133 mmHg b. 28.9 mmHg c. 257 mmHg d. 261 mmHg e. 212 mmHg

Name: what is the vapor pressure at 75c of an aqueous solution prepared by the addition of 843 g of the nonvolatile solute urea conh2 2 to 194 g of water the vapor pressure of pure water at 75c is 46322
Uploaded: 2022-06-10T15:13:49-08:00
Duration: 1 min 52 s
Channel: David Collins
Description: what is the vapor pressure at 75c of an aqueous solution prepared by the addition of 843 g of the nonvolatile solute urea conh2 2 to 194 g of water the vapor pressure of pure water at 75c is 46322

          What is the vapor pressure at 75°C of an aqueous solution
prepared by the addition of 84.3 g of the nonvolatile solute urea,
CO(NH2) 2, to 194 g of water? The vapor pressure of pure water at
75°C is 290 mmHg. Select one:
a. 133 mmHg
b. 28.9 mmHg
c. 257 mmHg
d. 261 mmHg
e. 212 mmHg

Added by Marie L.

Chemistry: Structure and Properties

Nivaldo Tro 2nd Edition

Instant Answer

Solved by Expert David Collins

06/10/2022

Step 1

The molar mass of urea is: \[ \text{Molar mass of urea} = 12.01 \, (\text{C}) + 2 \times 1.01 \, (\text{H}) + 2 \times 14.01 \, (\text{N}) + 16.00 \, (\text{O}) \] \[ = 12.01 + 2.02 + 28.02 + 16.00 \] \[ = 58.05 \, \text{g/mol} \] The number of moles of urea Show more…

Show all steps

Thanks for your feedback!

What is the vapor pressure at 75°C of an aqueous solution prepared by the addition of 84.3 g of the nonvolatile solute urea, CO(NH2) 2, to 194 g of water? The vapor pressure of pure water at 75°C is 290 mmHg. Select one: a. 133 mmHg b. 28.9 mmHg c. 257 mmHg d. 261 mmHg e. 212 mmHg