Understanding absorption coefficient, extinction coefficient, optical density, and oscillator strength. Using the Beer-Lambert law to calculate the intensity of light after passage through a sample.

Light of wavelength 256 nm passes through a 1 mm path length cell that contains a 0.05 M solution of benzene. The light is reduced to 16 percent of its initial value. Calculate the optical density and extinction coefficient of the sample. What would be the transmittance through a cell of path length 2 mm?

What is an Interference wedge, and what are its applications

Describe an interference wedge and elaborate briefly as to where they are used.

Organic Compound Analyzed using UV specro and IR Spectro

A organic compound is analyzed using UV-Specroscopy and IR spectrometry. (A) assuming that this compound exhibits a maximum absorbance at a wavelength in the UV region, sketch an expected UV spectrum lable the axes. (B) sketch an expected IR spectrum. Label the axes. (C) What are the major differences and similarities between these two specra. Which is more usefull for quantitative work? and which is for qualitative?

absorption spectrum

The 12C16O absorbs in the infrared region of the spectrum at 2145 cm^-1. Calculate the position of the absorption of 13C16O.

Spectroscopic method to distinguish between isomeric acids

What spectroscopic method would you use to unambiguously distinguish between the following isomeric acids? Give an explanation of how the spectra are interpreted to give you an assignment for each compound. (a) CH3(CH2)3CO2H (b) (CH3)2CHCH2CO2H (c) (CH3)3CCO2H