Molar absorptivities (ε, M-1cm-1) of compounds X and Y were measured in pure

samples at two different λ and are given below:

λ, nm X Y


250 14,350 2,505


310 2, 708 6,502


A mixture if these two compounds was tested in a 1.0 cm cell. And following

absorbances (A) were obtained:

λ, nm A


250 0.910

310 0.575


Find concentrations of X and Y in the mixture.