Beer-Lambert Law: Absorbance 0.1, ε = 500, 2 cm Path Length
Calculate Beer-Lambert absorbance or concentration with ε = 500 L/mol·cm, a 2 cm path length, and absorbance of 0.1.
How to use this tool
- Enter absorbance a, molar absorptivity ε, concentration c and path length l in the fields above.
- Results update instantly as you type — or click Calculate.
- Read your absorbance a and the full breakdown beneath it.
This preset applies the Beer-Lambert law to a low-absorbance scenario using a 2 cm path length cuvette and a molar absorptivity of 500 L/mol·cm.
Frequently asked questions
- What is molar absorptivity?
- Also called the molar extinction coefficient (ε), it is a measure of how strongly a substance absorbs light at a given wavelength. Units: L/(mol·cm).
- When does Beer-Lambert law break down?
- At high concentrations (above ~0.01 mol/L) due to molecular interactions, or when the light source is not monochromatic.