Exp 17 - Joseph Marcus Experiment 17 Colligative Properties...

Info icon This preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Joseph Marcus July 20, 2009 Experiment 17: Colligative Properties: Freezing Point Depression Introduction: The purpose of this experiment is to find the freezing point of a solvent and the depression of the freezing point as solute concentration is increased. The colligative properties of this experiment all depend on the number of solute particles in a solution. Adding non-volatile solute to a volatile solvent causes the boiling point to increase by lowering the vapor pressure of the solution (which causes an increased heat requirement for boiling). This is the boiling point elevation. This decreased vapor pressure also causes a decrease in the freezing point, which is referred to as the freezing point depression and depends on the concentration of the solute in the solvent. Eqtn 1: T f = -i K f m where: T f = (T f – T) T f is the lowered freezing point and T is the freezing point of the pure solvent i is the number of ions formed when dissolved K f
Image of page 1

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

View Full Document Right Arrow Icon
Image of page 2
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