The time it takes for concentration of reactant to decrease 50%
What is half-life?
The condition which defines the state of general equilibrium
When is the rate of the forward reaction the same as the rate of the reverse reaction?
Definition of a Bronsted base
What is a proton acceptor?
When K << 1, equilibrium favors this
What are reactants?
Measure of disorder
What is entropy?
A substance that increases the rate ofa chemical reaction without itself being consumed
What is a catalyst?
These states appear in an equilibrium expression
The relationship between pH and pOH
14.00 = pH + pOH
We use this to determine equilibrium concentrations
What is an ICE table?
The state of matter with greatest entropy
What is gas?
A series of elementary steps
What is reaction mechanism?
The direction of reaction when Q < K
What is forward?
The point at which titration is complete
What is equivalence point?
The shift when B is removed
A (g) + B (g) ⇌ C (g)
What is left (reverse)?
When this single thing is true, a reaction is spontaneous
What is negative deltaG?
(or positive Ecell)
This class of reaction is independent of the concentration of reactants
What is zero order?
The shift when volume decreases
A (g) + B (g) ⇌ C (g)
What is right (forward)?
NaCl raising the pH of HCl, for example
What is common ion effect?
Seen when Q > Ksp
What is precipitate?
At equilibrium, this measurement is true
When does deltaG = 0?
The rate law for the following reaction given that it is 2nd order with respect to A and 1st order with respect to B
2 A + 3 B --> AB + AB2
rate = k[A]2[B]
According to Le Chatelier's Principle, this changes K
What is temperature?
These two things can make a buffer
What is a weak acid/base and its conjugate?
When two or more equilibrium reactions share one or more compoments
What are coupled equilibria?
What are microstate?