Key Concepts:
There are both strong acids & bases
weak acids & basesthe comparison between acids & bases
Arrhenius Definition
Bronsted-Lowry Definition
the pH Scale
Acids:
pH < 7
taste sour
reacts with active metals to form salt & hydrogen gas
produce hydrogen ions
hydrogen-ion donor (H+), Bronsted-Lowry
Bases:
pH > 7
taste bitter
- feels slippery
- produce hydroxide ions (OH-)
- hydroxides are "only" bases
- hydrogen-ion acceptor, Bronsted Lowry
Comparing Acid & Base:
- always come in pair
- make conjugate
Strong Acids & Bases:
- will conduct electricity
- dissociate nearly completely
Weak Acids & Bases:
- indicators
- have a different color from original acid & base
- only dissociate a small amount
Arrhenius Definition:
- acids & bases depends on how much it ionizes in water
- dissociation is the separation
- HCl ionizes into H+ and Cl-
- Ca(OH)2 ionizes into Ca+ and 2OH-
The pH Scale:
- 0 - 14
- pH 0 is strongly acidic
- pH 14 is strongly basic
- pH 7 is neutral, water
There are both strong acids & bases
weak acids & basesthe comparison between acids & bases
Arrhenius Definition
Bronsted-Lowry Definition
the pH Scale
Acids:
pH < 7
taste sour
reacts with active metals to form salt & hydrogen gas
produce hydrogen ions
hydrogen-ion donor (H+), Bronsted-Lowry
Bases:
pH > 7
taste bitter
- feels slippery
- produce hydroxide ions (OH-)
- hydroxides are "only" bases
- hydrogen-ion acceptor, Bronsted Lowry
Comparing Acid & Base:
- always come in pair
- make conjugate
Strong Acids & Bases:
- will conduct electricity
- dissociate nearly completely
Weak Acids & Bases:
- indicators
- have a different color from original acid & base
- only dissociate a small amount
Arrhenius Definition:
- acids & bases depends on how much it ionizes in water
- dissociation is the separation
- HCl ionizes into H+ and Cl-
- Ca(OH)2 ionizes into Ca+ and 2OH-
The pH Scale:
- 0 - 14
- pH 0 is strongly acidic
- pH 14 is strongly basic
- pH 7 is neutral, water