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Beer-Lambert Law Calculator

Use the Beer-Lambert law to relate absorbance to concentration, molar absorptivity, and path length. Solve for any variable in A = εbc, essential for spectrophotometry and analytical chemistry.

Inputs

Results

Absorbance

0.5000

% Transmittance

31.62%

Concentration

5.000e-3 M

Beer-Lambert Law Results

ParameterValue
Absorbance (A)0.500000
Molar Absorptivity (ε)100.00 L/(mol·cm)
Path Length (b)1.0000 cm
Concentration (c)5.0000e-3 mol/L
Transmittance (T)0.316228
% Transmittance31.6228%
Verification εbc0.500000
FormulaA = εbc

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