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A solution containing a mixture of the compounds X and Y had an absorbance of 0.906...

A solution containing a mixture of the compounds X and Y had an absorbance of 0.906 at 443 nm and an absorbance of 0.778 at 520 nm when measured with a 1.00 cm cell. The molar absorptivities (ε) of X and Y at each wavelength are shown in the table below.

wavelength Molar Absorptivity (E M^-1cm^-1)
Lambda,nm X Y
443 1.600x10^4 3775
520 3893 6264

What are the Concentration of X and Y.

Thank you!!

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Answer #1

let conc. of x = (x and cone of y= Cy. Absorbances are additive, so at 443nm, A - Ex xx l & Eyrnant Cykl 0,906 = 106x 104 X x2 so, we will solve egen i and os for (x and by 2 from ears 1 Cy= 0.906 - 16000 Ca - (3) 3775 - putting this value of ly in e

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