Units
The SI unit is mol/m3. However, more commonly the unit mol/L is used. A solution of concentration 1 mol/L is also denoted as "1 molar" (1 M).
- 1 mol/L = 1 mol/dm3 = 1 mol dm−3 = 1 M = 1000 mol/m3.
An SI prefix is often used to denote concentrations. Commonly used units are listed in the table hereafter:
| Name | Abbreviation | Concentration | Concentration (SI unit) |
|---|---|---|---|
| millimolar | mM | 10−3 mol/dm3 | 100 mol/m3 |
| micromolar | μM | 10−6 mol/dm3 | 10−3 mol/m3 |
| nanomolar | nM | 10−9 mol/dm3 | 10−6 mol/m3 |
| picomolar | pM | 10−12 mol/dm3 | 10−9 mol/m3 |
| femtomolar | fM | 10−15 mol/dm3 | 10−12 mol/m3 |
| attomolar | aM | 10−18 mol/dm3 | 10−15 mol/m3 |
| zeptomolar | zM | 10−21 mol/dm3 | 10−18 mol/m3 |
| yoctomolar | yM | 10−24 mol/dm3 (1 molecule per 1.6 L) |
10−21 mol/m3 |
Read more about this topic: Molar Concentration
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