# L21 - Stoichiometry vs. Equilibrium Lecture 21 Midterm 2...

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

Lecture 21 Midterm 2 Review Key Idea: Reaching Equilibrium: Biological and chemical processes are dynamic and reversible, and the outcomes can be manipulated depending on conditions. Lectures 10, 11: Stoichiometric reactions (large K) Calculate the amount of product by stoichiometry. A + B " C 1 mole A plus 1 mole B yields 1 mole C Determine limiting reagent. Limiting reagent B: 2 moles A plus 1 mole of B yields 1 mole C Stoichiometry vs. Equilibrium K = [C] [A][B] Lectures 12, 13, 14: Introduction to equilibrium (K matters) Calculate the amount of product using equilibrium constant A + B ! C [C] = K [A][B] External conditions can change ratio. Adding lots of A results in a large [C]/[B] ratio Lectures 15, 16: Heterogeneous equilibrium Vapor pressure: liquid ! gas K p = p gas Gas solubility: aqueous ! gas K p = p gas /[aqueous] Solubility: MX K sp = s 2 MX 2 K sp = (s)(2s) 2 = 4s 3 Common ion: MX in a solution of X

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

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

## This note was uploaded on 04/03/2008 for the course CHEM 1A taught by Professor Nitsche during the Fall '08 term at Berkeley.

### Page1 / 2

L21 - Stoichiometry vs. Equilibrium Lecture 21 Midterm 2...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online