Homework Clinic

Science Clinic => Chemistry => Topic started by: Ebrown on Nov 18, 2019

Title: Determine the vapour pressure of a solution at 55 C that contains 34.2 g NaCl in 375 mL of water. ...
Post by: Ebrown on Nov 18, 2019

Question 1

Calculate the vapour pressure of pure water at 85 °C if a 285 mL solution containing 173.0 g of mannose, C6H12O6, has a vapour pressure of 545.0 mbar.

◦ 599 mbar
◦ 508 mbar
◦ 531 mbar
◦ 520 mbar
◦ 578 mbar

Question 2

Determine the vapour pressure of a solution at 55 °C that contains 34.2 g NaCl in 375 mL of water. The vapour pressure of pure water at 55 °C is 0.1574 bar.
◦ 0.127 bar
◦ 0.0907 bar
◦ 0.0967 bar
◦ 0.153 bar
◦ 0.108 bar

Title: Determine the vapour pressure of a solution at 55 C that contains 34.2 g NaCl in 375 mL of water. ...
Post by: InfiniteSteez on Nov 18, 2019

Answer 1

578 mbar

Answer 2

0.153 bar