Enter the molar mass in grams per mole (g/mol) and select the solution concentration to determine the equivalent mass concentration in nanograms per microliter (ng/µL).
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g/mol to ng/µL Formula
The following formula is used to convert a molar mass in grams per mole into a mass concentration in nanograms per microliter for a given solution molarity.
C_{ng/\mu L} = M \times c \times 1000Variables:
- Cng/µL is the mass concentration in nanograms per microliter
- M is the molar mass in grams per mole (g/mol)
- c is the solution concentration in moles per liter (mol/L)
To calculate the concentration in ng/µL, multiply the molar mass by the solution molarity to get g/L, then multiply by 1000 to convert g/L into ng/µL.
What is g/mol to ng/µL?
Grams per mole (g/mol) describes the molar mass of a compound, while nanograms per microliter (ng/µL) describes how much mass is present in a specific volume of solution. Because these units measure different things, you cannot convert directly from g/mol to ng/µL without also knowing the solution molarity. Once the molarity is known, the conversion becomes straightforward and is commonly used in chemistry, biology, and lab preparation work.
How to Convert g/mol to ng/µL?
The following steps outline how to convert g/mol to ng/µL.
- First, determine the molar mass of the compound in g/mol.
- Next, determine the solution concentration in mol/L.
- Multiply the molar mass by the molarity to calculate the concentration in g/L.
- Multiply the result by 1000 to convert g/L into ng/µL.
- Check your answer with the calculator above.
Example Problem:
Use the following variables as an example problem to test your knowledge.
Molar Mass (M) = 100 g/mol
Solution Concentration (c) = 0.1 mol/L
g/L = 100 × 0.1 = 10 g/L
ng/µL = 10 × 1000 = 10,000 ng/µL
g/mol to ng/µL Conversion Table
The table below lists example mass concentrations in ng/µL for several molar masses and molarities using the formula ng/µL = M × c × 1000.
| Molar Mass (g/mol) | Molarity (mol/L) | Mass Concentration (ng/µL) |
|---|---|---|
| 50 | 1 | 50,000 |
| 100 | 1 | 100,000 |
| 250 | 1 | 250,000 |
| 50 | 0.1 | 5,000 |
| 100 | 0.1 | 10,000 |
| 250 | 0.01 | 2,500 |
| 100 | 0.001 | 100 |
In practical lab work, this conversion is useful when you know a compound’s molar mass and want to express a solution as ng/µL for pipetting, assay setup, or comparing protocols that use mass-based concentrations.