13_lect_prob_2 - The osmotic pressure of the solution at...

Info icon This preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Chem 125 Dr. Retsek Winter 2008 Ch. 13 Lecture Examples, Part 2 8. What is the minimum molality of an ethylene glycol (C 2 H 6 O 2 – antifreeze) solution (in water) that will protect the solution from freezing at -18°C? K f for water is 1.86°C/ m . 9. An aqueous solution was made by dissolving 3.50 mg of protein in sufficient water to make 5.00 mL of solution.
Image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: The osmotic pressure of the solution at 25°C was 1.54 torr. What it the molar mass of the protein? 10. A solution is 1.0 mole benzene (C 6 H 6 ) and 2.0 moles of toluene (C 7 H 8 ). Given the vapor pressure of pure benzene is 75 torr and pure toluene is 22 torr, what is the mole fraction of each in the vapor phase?...
View Full Document

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern