•A strong acid donates protons readily.
•A strong base accepts protons readily.
•Weak acids or bases do not donate or accept protons readily.
•The strength of an acid is related to its properties, such as conductivity & pH
STRONG ACIDS
•Eg: Hydrochloric acid, HCl, is a strong acid and its reaction in water is nearly complete, producing many ions.
virtually complete reaction
•HCl (l) + H20 (l) → H30+ (aq) + Cl- (aq)
strong acid
WEAK ACIDS
•Eg: Acetic acid, CH3COOH, is a weak acid and will undergo a partial reaction when added to water.
•It is a poor conductor because not many ions are formed.
partial reaction
•CH3COOH (l) + H20 (l) ↔ H30+ (aq) + CH3COO- (aq)
weak acid
•A strong base accepts protons readily.
•Weak acids or bases do not donate or accept protons readily.
•The strength of an acid is related to its properties, such as conductivity & pH
STRONG ACIDS
•Eg: Hydrochloric acid, HCl, is a strong acid and its reaction in water is nearly complete, producing many ions.
virtually complete reaction
•HCl (l) + H20 (l) → H30+ (aq) + Cl- (aq)
strong acid
WEAK ACIDS
•Eg: Acetic acid, CH3COOH, is a weak acid and will undergo a partial reaction when added to water.
•It is a poor conductor because not many ions are formed.
partial reaction
•CH3COOH (l) + H20 (l) ↔ H30+ (aq) + CH3COO- (aq)
weak acid