Bronsted-Lowry acid is an acid are things that donated protons. Bronsted-Lowry base are ones that accept protons
Monoprotic acids
Acids that are willing to donate one mole of protons per mole of acid e.g. HCl. The concentration of monoprotic acids are equal to the concentration of H+ produced
Diprotic acids can donate two moles of protons e.g. H2SO4 so the concentration of H+ produced is equal to 2 * the concentration of acid.
Triprotic acid can produce three moles of protons e.g. H3PO4 so conc of H+ produced is equal to 3* conc of acid
A conjugated acid is a species formed from a Bronsted lowry base by the addition of a proton.
A conjugated base is a species formed from a Bronsted-lowry acid by the loss of a proton.
pH
Its the acidity of an aqueous solution depends on the number of H+ (H3O+) ions in a solution
Each pH value is ten times less then the value below it e.g. pH 1 = 1000H+ so pH 3 = 10 H+
Strong acid has a low pH because it can fully dissociate, weak acids only partially dissociates
pH = -log10 [H+]
where [H+] is the concentration of H+ in moldm^-3
so
[H+] is 10^-pH
NH3 + H2O --> OH- + NH4+
So H20 is the Bronsted-Lowry acid
NH3 is the Bronsted-Lowry base
NH4+ is conjugate acid
OH- is the conjugate base
Substances that can act as either an acid or base are called Amphoteric Substances e.g. water
