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Abbreviated
list of quantities, units and symbols in physical chemistry
4.3 physical quantities:
general chemistry
| Physical Quantity |
Symbol |
SI Unit |
| number of entities |
N |
1 |
| amount of substance, chemical amount |
n |
mol |
| molar mass |
M |
kg mol-1 |
| relative molecular mass, (molecular weight) |
Mr |
1 |
| relative atomic mass, (atomic weight) |
Ar |
1 |
| molar volume |
Vm |
m3 mol-1 |
| mass fraction |
w |
1 |
| volume fraction |
f |
1 |
| mole fraction |
x, y |
1 |
| partial pressure of substance B |
pB |
Pa |
| number concentration |
C, n |
m-3 |
| amount (of substance) concentration of B or
concentration of B |
cB, [B] |
mol m-3 |
| molality |
m |
mol kg-1 |
| mass concentration |
r, g |
kg m-3 |
| surface concentration |
G |
mol m-2 |
| stoichiometric number |
v |
1 |
| extent of reaction |
x |
mol |
Page last modified 21 January 2001.
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