An aqueous solution contains two absorbing species, x and y. when a solution of this mixture is put into a 5.000 cm cell, the total absorbance of a mixture of x and y at 300 nm is 0.372, while at 250 nm it is 0.478. the individual molar absorptivities of x and y are as listed below. what are the individual concentrations of x and y in this mixture? 250 nm 300 nma. x 4.05 x 104 m-1 cm-1 3.22 x 104 m-1 cm-1b. y 3.76 x 104 m-1 cm-1 2.86 x 104 m-1 cm-1