Friday, April 24, 2020

SCH 4U - Equilibrium Review

Success Criteria
  • definitions (equilibrium, equilibrium constant, homogeneous/heterogeneous eq, reaction quotient, entropy, solubility product constant, molar solubility, solubility, common ion effect)
  • creating an eq law (or expression) from a balanced eqtn
  • magnitude of Kc, (are Rs or Ps favoured?)
  • direction chemical eqtn and K (what is the relationship between forward Kc and reverse Kc?)
  • calculating Kc from eq [ ]s
  • Le Chatelier's Principle - know it and how to apply it to make predictions on how a reaction at eq will respond to a change in conditions
  • predicting the direction of reaction by comparing Q to Kc
  • using ICE table to calculate eq [ ]s and/or K, given in[ ]s and one eq [ ]
  • using ICE table to calculate eq [ ]s, given in[ ]s and K (quadratics, baby!)
  • using the concept of entropy, predict the placement of the heat term in a reaction equation
  • be familiar with all the thermodynamic laws, spontaneity of reactions
  • calculate Ksp, given eq [ ] of one aqueous ion
  • use ICE table to calculate molar solubility or solubility for a solid ionic compound
  • incorporate common ion effect into calculations 
  • qualitatively and quantitatively predict whether dissolution or precipitation will occur when two solutions are mixed together  
Review # 1-6, 8, 9, 11-16 (do as many or as few as you need to be confident)