Reversible Reactions. A + B <=> C + D In a reversible reaction as soon as some of the products are formed they react together, in the reverse reaction, to form the reactant particles. Example As soon as A + B react forming C + D, some C+ D react together to produce A + B. Equilibrium.
([ ] = concentration)
= 10 –13 mol/l
pH = - log10 [H+]
= - log 10 –13
(molecules)+ H+ (aq) ( ions)
( NH4OH) and a strong acid ( HCl).
( NaOH) and a weak acid (CH3COOH).
CH2 – OCO R CH2 –OH R – COO-Na+
CH - OCO R* <=> CH – OH + R* - COO – Na+
CH2 -OCO R** CH2 – OH R** - COO – Na+
Fat/Oil Glycerol Sodium salts