Final Flashcards
(19 cards)
Strong Acids
HCl, HBr, HI, HNO3, H2SO4, HClO3, HClO4
Arrhenius Acid
A substance that contains hydrogen and dissociates in water to produce H+ in water
Arrhenius Base
A substance that contains OH and produces OH- in water
Bronsted-Lowery Acid
Donates an H+ (proton)
Bronsted-Lowery Base
Accepts H+ (proton) and must have a non bonding pair of electrons
Amphoteric
Can be an acid or a base
Most common is water
Auto ionization of water
2H2O H3O+ OH-
Strong Bases
Soluble hydroxides (alkali metals and heavier alkaline earth metals)
Oxides of groups 1A and 2A
Hydrides
Nitrides
Dissociate completely in aqueous solutions
Is the Ka value large or small for strong acids
Very large
Polyprotic acids
Acids that have more than one acidic proton.
Most common weak base
NH3 (ammonia)
Oxyacids
Contain oxygen atoms
More oxygens = larger Ka value
Acidity increases with the number of oxygens
The total energy of the universe is
Constant
Sign for Enthalpy
ΔH
Sign for entropy
ΔS
Name the three type of molecular motion
Translational
Vibrational
Rotational
Microstate
A sample of a molecules at an instant in time
Is ΔG measured?
No, we must use ΔS and ΔH to find ΔG
1 V =
1 J/C (Coulomb)