Chem acid and bases Flashcards
Arrhenius
ACID: make H+
BASE: make OH-
Neutralization
Lewis
ACID: gains electrons pair
BASE: loses electron pair
synthesis
covalent bonds
(BF3 &NH3)
Strong acids
large k
CL NO3 SO4 (first hydrogen) I BR ClO4 (add H to the beginnings)
Strong bases
large k
group 1 elements added to OH
group 2 from Ca and below
Weak acids
ICE chart
C2H4O2
H3BO3
HF
Weak bases
ICE chart
NaCN
NH3
Acid properties
- aqueous
- sour
- turns red
- releases H2 gas w/ metal
- conducts electric current
Bases properties
- bitter
- aqueous
- turns blue
- slippery
- conduct electric current
- Name: same as normal
Bronsted-Lowry Acid-Base
(conjugate acid-base pairs. )
ACID: loses Hydrogen.
BASE: gains hydrogen.
A+B-CB+CA
only one hydrogen is lose
acid becomes conjugate base, vice versa
WATER
Amphoteric
can be both acid and base
Binary Nomenclature
H+nonmetal
Name: add hydro at the front
-ic at ending
Oxyacid
(H+Polyatomic ion)
has H and O
ite-ous
ate-ic
Monoprotic
contains 1 ionizable H
diprotic
contains 2 Hs
triprotic
contains 3 Hs
neutralization
acid+base-H2O+ionic compound
double displacement
Kw
water ionization constant
Ka x Kb
Ka
Acid dissociation constant
[H3O+](conj.base]
divided by
[acid]
Kb
Base-dissociation constant
[conjug.acid][OH-]
divided by
[base]
ICE chart
no water included
E is used in Ka and Kb
pH scale
measure of acidity of a solution
acidic-neutral-basic
pH= -log[H+]
pOH
the measure of alkalinity (baseness) of a solution
basic-neutral-acidic
pOH= -log[OH-]
pH and pOH
pH+pOH=14
Ion-Product Constant for Water (Kw)
[H+][OH-]= 1x10^-14 M
Titration
a solution of known concentration is used to determine unknown solution (concentration)
- unknown is in beaker and known solution is added until neutralization called endpoint of titration.
Titration indicator
used to mark endpoint of titration. Phenolphthalein: colorless in acid pink in base
Calculation; titration
- write balanced rxn
- convert molality into moles [M: mol/L]
- convert moles of known into unknown (mole)
- moles of unknown to volume [M:mol/L]