{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Concepts for Prelim _2

Concepts for Prelim _2 - Chemistry 2080 Spring 2011 List of...

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

View Full Document Right Arrow Icon
Chemistry 2080 - Spring 2011 List of Concepts for Prelim #2 Ch 15: Principles of Chemical Equilibrium Different types of equilibria: (a) Liquid vaporizing in a closed container (b) Solute in a solution (c) Distribution of a solute between two immiscible liquids (e.g. Iodine in water/CCl 4 ) (d) Chemical reaction, e.g. PCl 5 PCl 3 + Cl 2 Do not include pure liquids or solids in equilibrium constant expressions. Other examples of (d): NO 2 /N 2 O 4 ; CO + H 2 reacting to give methanol Rules for manipulating equations and the associated equilibrium constants (reverse equation/ take reciprocal; multiply equation by a constant/ raise K to that power; when you add two chemical equations, you must multiply the two values of K). How to derive an unknown K from several known equilibria. Activities make equilibrium constants dimensionless. The relationship between Kc and Kp and how to interconvert them. Calculation of equilibrium concentrations using the ICE method (initial, change and equilibrium). Solution of a quadratic equation. Le Châtelier’s Principle. Its application to NO 2 /N 2 O 4 , and the iron(III) thiocyanate equilibrium . The Reaction Quotient and its use in determining whether a mixture is at equilibrium or not. The use of approximations for simplifying the math: application in the 2H 2 + S 2 = 2H 2 S system. The 5% rule.
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