Thermodynamics and equilibirum and acids/bases

L2+sime more

Rate of reaction in a reversible and irreversible reaction

Does an equilibrium constant >1 favour the forward or backwards reaction?

Forward reaction

Equation for a dynamic equilibrium

Small numbers are the mole counts (big numbers next to a formula e.g. 3 in 3H₂O)

What is an acid

A molecule that can donate a proton

What is a base

A molecule that can accept a proton

What is Ka

Degree of dissociation of an acid - i.e. how much of the acid is in the ionised form

What is an equivalent (eq)?

A quantity that is calculated by moles * valence

What is a normal (N)

A unit of concentration calculated by

N = eq/L

OR

N = M * Valence

Equation to convert [H+] to pH

10^[H+] (concentration usually in M)

Calculation for pOH in a strong base

14-pH = pOH

What is C in the data sheet equation pH = ½ pKa - ½ logC and the use of the equation

C = [HA] in a weak acid when you know degree of ionisation