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using beer law find the unknown concentration of solution, if the spectrophotome

ID: 968132 • Letter: U

Question

using beer law find the unknown concentration of solution, if the spectrophotometer has detected the absorbance of a solution as 0.55 at a wavelength of 300nm, the molar absorptivity of solution at that wavelength is 5500 L/mol.cm and light travelled a distance of 1.1 cm through the solution. using beer law find the unknown concentration of solution, if the spectrophotometer has detected the absorbance of a solution as 0.55 at a wavelength of 300nm, the molar absorptivity of solution at that wavelength is 5500 L/mol.cm and light travelled a distance of 1.1 cm through the solution. using beer law find the unknown concentration of solution, if the spectrophotometer has detected the absorbance of a solution as 0.55 at a wavelength of 300nm, the molar absorptivity of solution at that wavelength is 5500 L/mol.cm and light travelled a distance of 1.1 cm through the solution.

Explanation / Answer

A = eCl

A= Absorbance = 0.55

e = molar absorbtivity = 5500L/molcm

C = ?

l = 1.1cm

So, C = A/el = 0.55 / (5500 x 1.1) = 9.09 x 10^-5 M concentration