Key Equations and Relationships for final

# 5 relationship between ph and poh 155 expression for

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Expression for the pOH Scale (15.5) Relationship between pH and pOH (15.5) Expression for the p K a Scale (15.5) Expression for Percent Ionization (15.6) Relationship between K a , K b , and K w (15.8) Chapter 16 The Henderson–Hasselbalch Equation (16.2) Effective Buffer Range (16.3) The Relation between Q and K sp (16.6) If Q < K sp , the solution is unsaturated. More of the solid ionic compound can dissolve in the solution. If Q = K sp , the solution is saturated. The solution is holding the equilibrium amount of the dissolved ions and additional solid will not dissolve in the solution. If Q > K sp , the solution is supersaturated. Under most circumstances, the solid will precipitate out of a supersaturated solution. Chapter 17 The Definition of Entropy (17.3) Change in Entropy (17.3)

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Change in the Entropy of the Universe (17.4) Change in the Entropy of the Surroundings (17.4) Change in Gibbs Free Energy (17.5) Standard Change in Entropy (17.6) Methods for Calculating the Free Energy of Formation ( Δ G ° rxn ) (17.7) The Relationship between Δ G ° rxn and Δ G rxn (17.8) The Relationship between Δ G ° rxn and K (17.9) Chapter 18 Definition of an Ampere (18.3) Definition of a Volt (18.3) Standard Hydrogen Electrode (18.4) Equation for Cell Potential (18.4) Relating Δ G ° and E ° cell (18.5) Relating E ° cell and K (18.5) The Nernst Equation (18.6)
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