Lab Experiment3 - Lab Experiment 3 Distillation and...

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

View Full Document Right Arrow Icon
Lab Experiment # 3 Distillation and Fractional Distillation Shelley Hobbs 9/4/08 Information: Vapor pressure increases as heat increases. The higher volatile the substance the higher the vapor pressure is. Vapor pressure is pressure produced by the pressure produced by the vapor of that liquid at a given temperature. When vapor pressure is equal to the applied pressure then boiling occurs. A liquid can be made to boil by 1) increasing vapor pressure ( applying heat) or 2) Decreasing applied pressure ( applying a vacuum). Raoul’s Law is the vapor pressure of a mixture is the combined pressure of the vapor pressure of all the liquids in the mixture. Vp total = XaVpa +XbYpb ……. Xa= moles of a/moles of everything Simple distillation is used for the separation of nonvolatile solids from liquids and for liquids that have a boiling point difference of at least 70 o C. Fractional Distillation is used for separating mixtures of liquids with boiing point differences less than 60 o . Repeating distillation over and over again each time you
Image of page 1

Info icon This 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