| NAME | SYMBOL | VALUE (with units) |
| LENGTH | ||
| Meter | m | |
| Nanometer | nm | 1 x 10-9 m |
| Angstrom | Å | 1 x 10-10 m |
| MASS (m) | ||
|
Kilogram |
kg |
|
|
Atomic Mass Units |
amu or µ |
1.66 x 10-24 g |
| VOLUME (V) | ||
|
Liter |
L |
|
|
1 mL = 1 cm3 1dm3 = 1L |
||
| PRESSURE (P) | ||
|
Standard Pressure |
1 atm |
1atm = 101.3kPa = 760. Torr = 760.mmHg = 14.7 lb./in2 |
| TEMPERATURE (T) | ||
|
Standard Temperature |
C |
32.0°F = 0.0°C = 273.15 K |
| ENERGY | ||
|
Heat |
q |
1 cal = 4.184 J 1Cal = 4.184 kJ |
|
Activation Energy |
Ea |
kJ/mol |
|
Specific Heat of water (l) |
Cp |
4.18 J/g °C |
|
Specific Heat of water (s) |
CP |
2.03 J/g °C |
|
Specific Heat of water (g) |
Cp |
2.02 J/g °C |
|
Heat of fusion of water |
D Hfus |
6.01 kJ/mol 334 J/g |
|
Heat of vaporization of water |
D Hvap |
40.7 kJ/mol 2258 J/g |
| CONSTANTS | ||
|
Speed of Light |
c |
3.00 x 108 m/sec |
|
Avogadro’s Number |
NA |
6.022 x 1023 particles |
|
Charge of an electron |
e |
1.60 x 10-19 C |
|
Equilibrium constant |
K |
|
|
Rate constant |
k |
|
|
Reaction quotient |
Q |
|
|
Universal Gas Constant |
R |
0.08206 L atm/mol K 62.4 L mmHg/mol K 8.314 J/K mol 8.314 L kPa/mol K 1.99 cal/K mol |
| STANDARD UNITS | ||
|
Symbol
|
Name
|
Quantity
|
|
m |
meter |
length |
|
kg |
kilogram |
mass |
|
Pa |
pascal |
pressure |
|
K |
Kelvin |
temperature |
|
mol |
mole |
amount of a substance |
|
J |
joule |
energy, work, quantity of heat |
|
s |
second |
time |
|
C |
coulomb |
quantity of electricity |
|
V |
volt |
electrical potential |
|
L |
liter |
volume |
Back to Chemistry Reference Data
Prepared with the support and help of the North Carolina Department of Public Instruction.