Enter the absorbance and molar concentration into the calculator to determine the molar extinction coefficient.
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Extinction Coefficient Formula
The following equation can be used to calculate a molar extinction coefficient.
E = A / mc
- Where E is the extinction coefficient
- A is the absorbance
- mc is the molar concentration
Extinction Coefficient Definition
Extinction coefficient is defined as the ratio of absorbance to molar concentration of a solution.
Extinction Coefficient Example
How to calculate an extinction coefficient?
- First, determine the absorbance.
Calculate the absorbance of the solution.
- Next, determine the molar concentration.
Calculate the molar concentration of the substance.
- Finally, calculate the extinction coefficient.
Calculate the coefficient of extinction using the equation above.
An extinction coefficient is a measure of a chemicals ability to absorb light at a given wavelength.
Similarly, absorbance is also another measure of the substances ability to absorb light.
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