Lecture 18 - CHM 115 Lecture 18 Todays Lecture Reading was...

Info icon This preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
1 1 CHM 115 Lecture 18 Today’s Lecture Reading was KTT: Review Sections: 14.4 Colligative Properties Vapor pressure lowering Boiling point elevation Freezing point depression Osmotic pressure Next Lecture Read Pages: 497 thru 512
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
2 Colligative Properties Solutions homogeneous, mixed at the atomic/molecular scale Solubility (g of solute / mL of solvent) Affected/determined by IMF’s Phases All combinations of sol/liq/gas. (Ex. gas-liq, liq-liq solutions) Energy Considerations Energy to separate components, energy from mixing, entropy Colligative Properties Solution properties DIFFERENT than properties of the individual components. Examples: bp, fp, vp, osmotic pressure
Image of page 2
3 Colligative Properties Properties that are affected by the number of solute particles in the solution, regardless of type. Vapor Pressure Boiling Point Freezing Point Osmotic Pressure
Image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
4 iClicker - #1 In an aqueous solution, which substance is a non-electrolyte: A. Hydrogen chloride (HCl) B. Potassium nitrate (KNO 3 ) C. Ethylene glycol (C 2 H 6 O 2 ) D. Ammonia (NH 3 )
Image of page 4
5 Vapor Pressure Definition : The equilibrium pressure of a vapor above its liquid.
Image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the 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