exam 2 general rules and equations to know

how do you find a conjugate base

subtract a proton

how do you find a conjugate acid

add a proton

what is the Arrhenius equation

Ln K= - (Ea/R) (1/T) + Ln A

when do you use the Arrhenius equation

When looking for activation energy

What is the rate law

Rate= K (A)m (B)n

what is the reverse of Kc

1/Kc original

When does Kp=Kc

When Change in n = 0

what’s the kp expression

Kp = Pc / Pa(Pb)2

Q < K

Shifts to the right towards the products

Q > K

shifts Left towards the reactants

Q = K

at equilibrium no shift

According to Le Chateliers Principle when a system is at equilibrium and a change appears..

the reaction shifts to oppose that change

PH equation

PH= -log (H+)

POH formula

POH = -Log (OH)

How do you find PH with POH

14- POH

what does a Lewis acid do

accepts an electron pair

what does a Lewis base do

Is an electron pair donor

the more oxygen atoms …

a molecule has the more acidic it is

If you have a Ka present it is

A weak acid

when you have a weak acid how do you find h+

sqrt(Ka * (HA)i )

Kb=

Kw/Ka

Kp equation

Kp=Kc(RT)^Change in N