review Flashcards
kinetics vs thermodynamics
kinetics- how fast
thermo- spontanaity - will the rxn occur
catalysts
alter kinetics, not thermo
- ater rate, not equilibrium
- will change K (hoe fast it takes to get to equ) but not Ksp (equ position stays the same)
2 ways to get Keq?
- lass of mass
2. from delts G: deltaG’= -RTlnKeq
when delta G is not at standard conditions ( reactants at 1M, 1atm, 25 C)
delta G’ = deltaG + RT ln Q
if ln (less than 1)
negative number
E cell =
reduction pot + oxidation potencial
how to find Ecell in non standard conditins
E cell = Ecell’ - 0.06/n log Q
negative side of bettery
is the small lil line
OH are usually insoluble except when bound with
group 1 and CaStrBa
at pka
here (horizontal plateau where pH stays relativley constant) enough base has been added to neutralize 1/2 acid
at equivalence point (pH jumps alot) enough base to neutralize all acid - they are equal
bond dissociation energy is
the energy to break bonds
- delta H = bond dis E for all reactants - bond dis E for all products