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The IR (infrared) spectra of two pure compounds (0.030 M compound A in solvent and 0.030 M compound B in solvent) are gi
Posted: Sun Feb 13, 2022 8:01 am
by answerhappygod
- The Ir Infrared Spectra Of Two Pure Compounds 0 030 M Compound A In Solvent And 0 030 M Compound B In Solvent Are Gi 1 (95.75 KiB) Viewed 66 times
The IR (infrared) spectra of two pure compounds (0.030 M compound A in solvent and 0.030 M compound B in solvent) are given. The pathlength of the cell is 1.00 cm. The y-axis in the spectra is transmittance rather than absorption, so that the wavenumbers at which there is a dip in the curve correspond to absorption peaks. A mixture of A and B in unknown concentrations gave a percent transmittance of 47.7% at 2976 cm-1 and 45.3% at 3030 cm-1. 100 Wavenumber 0.030 MA 0.030 MB Unknown 90 3030 cm-1 35.0% 93.0% 45.3% 80 70 60 50 2976 cm-1 76.0% 42.0% 47.7% Transmittance (%) 40 2976 cm 3030 cm 30 20 -Pure A Pure B 10 0 3040 2890 2990 2940 Wavenumber (cm) What are the concentrations of A and B in the unknown sample? [A] = M
= M