Use the Solution Prep tab to enter any 3 of the 4 values (grams, mmol/L, molar mass, volume) to calculate the missing variable. Use the Lab Unit Converter tab to convert between mmol/L, g/L, and mg/dL for a selected substance.
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Mmol/L to Grams Formula
The following formula is used to convert mmol/L to grams for a given molar mass and volume.
g = \frac{mmolL \cdot MW \cdot V}{1000}Variables:
- g is the mass in grams
- mmolL is the concentration in millimoles per liter
- MW is the molar mass in grams per mole (g/mol)
- V is the volume in liters
To calculate the mass in grams, multiply the concentration in mmol/L by the molar mass and the volume, then divide by 1000.
How the Conversion Works (Dimensional Analysis)
This is standard unit cancellation: (mmol/L) × (g/mol) × (L) = mmol × g/mol. Since 1 mmol = 1/1000 mol, the result is g/1000, which is why the formula divides by 1000. For authoritative references, check a general chemistry textbook or a university chemistry unit-conversion guide.
| Concentration (mmol/L) | Grams (NaCl) | Grams (Glucose) | Grams (Sucrose) |
|---|---|---|---|
| 0.1 | 0.006 | 0.018 | 0.034 |
| 0.5 | 0.029 | 0.090 | 0.171 |
| 1 | 0.058 | 0.180 | 0.342 |
| 2 | 0.117 | 0.360 | 0.685 |
| 5 | 0.292 | 0.901 | 1.712 |
| 10 | 0.584 | 1.802 | 3.423 |
| 20 | 1.169 | 3.603 | 6.846 |
| 25 | 1.461 | 4.504 | 8.558 |
| 50 | 2.922 | 9.008 | 17.115 |
| 75 | 4.383 | 13.512 | 25.673 |
| 100 | 5.844 | 18.016 | 34.230 |
| 150 | 8.766 | 27.024 | 51.345 |
| 200 | 11.688 | 36.032 | 68.460 |
| 250 | 14.610 | 45.040 | 85.575 |
| 300 | 17.532 | 54.048 | 102.690 |
| 400 | 23.376 | 72.064 | 136.920 |
| 500 | 29.220 | 90.080 | 171.150 |
| 750 | 43.830 | 135.120 | 256.725 |
| 1000 | 58.440 | 180.160 | 342.300 |
| 2000 | 116.880 | 360.320 | 684.600 |
| * Rounded to 3 decimals. Formula: grams = (mmol/L × Molecular Weight × Volume) / 1000. Values assume Volume = 1 L. Molecular weights: NaCl = 58.44 g/mol; Glucose = 180.16 g/mol; Sucrose = 342.30 g/mol. | |||
What is Mmol/L?
Mmol/L stands for millimoles per liter, a unit of concentration that measures the number of millimoles of a substance in one liter of solution. It is commonly used in chemistry and medicine to express the concentration of solutes in a solution. One millimole is equal to one-thousandth of a mole, which is a standard unit in chemistry representing a specific number of molecules or atoms.
How to Convert Mmol/L to Grams?
The following steps outline how to convert Mmol/L to grams.
- First, determine the concentration in mmol/L (mmolL).
- Next, determine the molar mass of the substance (MW) in g/mol.
- Next, determine the volume of the solution (V) in liters.
- Finally, use the formula g = (mmolL * MW * V) / 1000 to calculate the mass in grams.
- After inserting the values and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
Concentration in mmol/L (mmolL) = 5
Molecular weight (MW) = 180 g/mol
Volume (V) = 2 L
