• Predict Entropy Changes

FREE ENERGY CALCULATIONS

• ΔG° rxn  =  Σ ΔG° products   -  Σ ΔG° reactants

Summation

• ΔG = ΔH – TΔS

• Hess’s Law Summation 

• ΔG = ΔG° + RTln(Q)

• ΔG° = -RTlnK    “RatLink”

• ΔG° = - nFE°

ELECTROCHEMICAL CELL POTENTIALS

• Determining standard state cell potentials

Find the standard cell potential for an electrochemical cell with the following cell reaction.

Zn(s) + Cu2+(aq) → Zn2+(aq) + Cu(s)

• Determining non-standard state cell potentials

EQUILIBRIUM CONSTANTS AND FREE ENERGY CHANGES FOR ELECTROCHEMICAL CELLS 

• Determining equilibrium constants

• Determining standard state free energy changes

• Determining nonstandard state free energy changes

ELECTROLYSIS

• Determining quantities of substances produced by electrolysis

• Determining time required to produce a quantity of a substance by electrolysis**

• Determining the current required to produce a quantity of substance in a given time period.**