Infrared spectra are customarily recorded on a transmittance scale so that weak and
Chapter 18, Problem 18-5(choose chapter or problem)
Infrared spectra are customarily recorded on a transmittance scale so that weak and strong bands can be displayed on the same scale. The region near 2 000 cm1 in the infrared spectra of compounds A and B is shown in the figure. Note that absorption corresponds to a downward peak on this scale. The spectra were recorded from a 0.010 0 M solution of each, in cells with 0.005 00-cm pathlengths. A mixture of A and B in a 0.005 00-cm cell gave a transmittance of 34.0% at 2 022 cm1 and 38.3% at 1 993 cm1 . Find the concentrations of A and B
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