Name
Formula
Ka
Hydrogen Sulfate Ion
HSO4-
1.2 × 10-2
Chlorous Acid
HClO2
1.2 × 10-2
HC2H2ClO2
1.35 × 10-3
HF
7.2 × 10-4
Nitrous Acid
HNO2
4.0 × 10-4
Acetic Acid
HC2H3O2
1.8 × 10-5
[Al(H2O)6]3+
1.4 × 10-5
Hypochlorous Acid
HOCl
3.5 × 10-8
Hydrocyanic Acid
HCN
6.2 × 10-10
Ammonium Ion
NH4+
5.6 × 10-10
HOC6H5
1.6 × 10-10
Monochloracetic Acid
Hydrofluoric Acid
Hydrated Aluminum(III) Ion
Phenol
b
 
atm L2
mol 2
 molL 
Gas
a
He
0.034
0.0237
Ne
0.211
0.0171
Ar
1.35
0.0322
Kr
2.32
0.0398
Xe
4.19
0.0511
H2
0.244
0.0266
N2
1.39
0.0391
O2
1.36
0.0318
Cl2
6.49
0.0562
CO2
3.59
0.0427
CH4
2.25
0.0428
MA 
mA
nA
Name
Mg(OH)2
8.9× 10-12
AgCl
Ag2CrO4
AgI
1.6× 10-10
9.0× 10-12
1.5× 10-16
Ka2
-3
5 × 10-3
8 × 10-8
Carbonic Acid*
H2CO3
4.3 × 10-7
4.8 × 10-11
Sulfuric Acid
H2SO4
Large
1.2 × 10-2
Sulfurous Acid
H2SO3
1.5 × 10-2
1.0 × 10-7
H2S
1.0 × 10-7
~ 10-19
H2C2O4
6.5 × 10-2
6.1 × 10-5
H2C6H6O6
7.9 × 10-5
1.6 × 10-12
Hydrosulfuric Acid**
Oxalic Acid
Ascorbic Acid
6.2 × 10
Ka3
-8
H3AsO4
4.8 × 10-13
6 × 10-10
* This is really CO2 aqueous.
**The Ka2 value for H2S is quite uncertain. Its small size makes it very difficult to measure.
rate1

rate 2
 b  b 2  4ac
x
2a
1× 10-15
Arsenic Acid
2 RT
M
 
MgCO3
7.5 × 10
A 
pH   log H
Ka1
Ksp(25°C)
1.5 × 10-9
8.7 × 10-9
4.0 × 10-11
1.3 × 10-6
6.1 × 10-5
8.5 × 10-45
2.1 × 10-11
1.8 × 10-15
1.6 × 10-5
1.3× 10-8
7× 10-29
H3PO4
M 

Formula
Formula
BaSO4
CaCO3
CaF2
Ca(OH)2
CaSO4
CuS
FeCO3
Fe(OH)2
PbCl2
PbSO4
PbS
Phosphoric Acid
PA   A Ptot
u mp 
Name
Barium sulfate
Calcium carbonate
Calcium fluoride
Calcium hydroxide
Calcium sulfate
Copper(II) sulfide
Iron(II) carbonate
Iron(II) hydroxide
Lead(II) chloride
Lead(II) sulfate
Lead(II) sulfide
Magnesium
carbonate
Magnesium
hydroxide
Silver chloride
Silver chromate
Silver iodide
n
V
M I VI  M F VF
nA
n t ot
KE ave
M2
ZA  A
M1

pOH   log OH


 
 A 

pH  pK a  log


HA


u rms
 32 RT
N
V
RT
2M
3RT

M
PV  nRT
8 RT
M
u ave  u 
 

K W  H  OH   1.0  10 14
2


 P  a n  V  nb   nRT

 V  

Fundamental Constants
Acc. of gravity
g
Avogadro's
number
NA
Bohr radius
a0
Boltzmann’s
constant
k
9.806 ms
6.02214  1023
5.292  10 11 m
1.38066  10 23
F
R
Neutron's
mass
Planck's
constant
J
K
 1.60218  10 19 C
C
96,485 mol
8.3145
Gas constant
1
mol
9.10939  10 31 kg
e
J
molK
or
Latm
0.08206 molK
1.67493  10 27 kg
h
6.62608  10 -34 Js
27
Proton's mass
1.672623  10
Proton's
charge
1.60218  10 19 C
Speed of light
c
Formula
Kb
NH3
1.8 × 10-5
Methylamine
CH3NH2
4.38 × 10-4
Ethylamine
C2H5NH2
5.6 × 10-4
Aniline
C6H5NH2
3.8× 10-10
Pyridine
C5H5N
1.7 × 10-9
Ammonia
1.60218  10 19 C
e
Electron's
mass
Electron's
charge
Faraday's
constant
Name
2.9979246  10 8
kg
m
s
Volume Conversion Factors
1L
3
Energy Conversion Factors
3
=
10 cm
1.000 gal
=
3
1 cal
=
4.184 J
3.785×10 cm
1 eV
=
1.62018×10-19 J
1.00 ft3
=
2.83×10-2 m3
1 eV
=
96.485 kJ·mol-1
1.00 qt
=
9.46×102 cm3
1 C·V
=
1J
Energy Conversion Factors
1 kWh
=
3.600×103 kJ
1 cal
=
4.184 J
1 L·atm
=
101.325 J
1 eV
=
1.62018×10-19 J
1 eV
=
96.485 kJ·mol-1
1 C·V
=
1J
1 kWh
=
3.600×103 kJ
1 L·atm
=
101.325 J
3
Pressure Conversion Factors
Mass Conversion Factors
2.205 lb
=
1.000 kg
1.000 lb
=
453.6 g
1.000 oz
=
28.35 g
1.000 ton
=
907.2 kg
1 amu
= 1.6605×10-27 kg
1 atm
=
1.01325×105 Pa
1 atm
=
760 Torr
760 mm Hg
1.094 yd
=
1.000 m
1 atm
=
14.70 psi
0.3937 in
=
1.000 cm
1 bar
=
105 Pa
0.6214 mi
=
1.000 km
1Å
=
10-10 m
Length Conversion Factors