Acids and Bases Flashcards
Arrhenius Acid and Base
Acid- Produces Hydrogen ions
Bases- Produce OH
Bronstead Lowry Acid and Base
Acid- Donates proton
Base- Accepts proton
Lewis Acid and Base
Acid- Electron pair acceptor
Base- Electron pair donor
pH
-log(H+)
Ka
Ka= [A-][H+]
[HA]
Kb
Kb= [HA][OH+]
[B]
Kw
1.0* 10^-14
Strong Acids
HCl, HBr, HI, HNO3, HClO4, H2SO4
Strong Base
LiOH, NaOH, KOH, Ba(OH)2, Sr(OH)2
Strong Acid+ Strong Base
pH=7
Strong Acid + Weak Base
pH <7
Weak Acid+Strong base
pH> 7
Weak Acid +Weak Base
Depends on the relative strengths of the congugate acids and bases
Buffer
- Resists changes in its pH
- Consists of a weak acid and its congugate base
Henderson-Hasselbalch equation
pH= pKa+ log([A-]/[HA])
Polyprotic Acid
Acids that can give up more than one hydrogen ion
Amphoteric
A compound that can act as a base and an acid
Acid Anhydride
Substance that combines with water to form an acid
Basic Anhydride
Substance that combines with water to form a base
Equivalence Point
When enough base has been added to neutralize all the acid
Half- Equivalence Point
The point where enough base has been added to neutralize half the acid
pH=pKa
Equation Relating Keq and Kp
Kp= Kc(RT)^Δn