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K stands for
equilibrium constant
K=
K=products/reactants
Q stands for
reactant quotient
Q=
Q=products/reactants
Large K means
products favored
What do you leave out of Q&K equations?
solids and liquids
What do you do to K if reversing rxn?
1/k
What do you do to K if doubling rxn?
k^2
How do you find K of a mechanism?
multiply K values of each step
increasing pressure shifts to…
side with more moles of gas
if Q>K…
reactants favored
Increasing products shifts…
to reactants
Increasing temp shifts to…
endothermic side
What ions are always soluble?
Group 1 cations, NH4+, NO3-
solubility shortcut for XY
X^2
Solubility shortcut for XY2
4x^3
Solubility shortcut for XY3
27x^4
Large x means
more soluble
When does a precipitate form?
when Q>K
Note 
Flashcard (44)