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 b ...continues
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
Spectroscopy/Advanced Physical Chemistry
(See attached file for full problem description with proper symbols and equations) --- Given the following electronic configuration for the ground state of CF: a) determine the term symbol for the ground electronic state. b) determine the term symbols for the excited states that result when an electron is prom ...continues
1H NMR spectrum for 4-phenylphenol
Refer to attached document. I have an 1H NMR spectrum of 4-phenylphenol (400 Mhz, CDCl3 solvent) and I have the spectrum assignment for the chemical shifts and corresponding protons. I would like an explanation of WHY each shift correspond with their particular protons. For instance, why are the protons adjacent to the pheno ...continues
Help Identifying Structure of compound for IR Spectroscopy Graphs
I have to answer questions about things like SODAR and chemical formula using IR Spectroscopy, Mass Spectroscopy, C NMR, and H NMR graphs for five unknown compounds. In order for me to answer the questions, I first need to determine which compound the graphs are describing. I know how to determine SODAR and chemical formulas, bu ...continues
I need help determining compounds from IR Spectroscopy Graphs
I have to answer questions about things like SODAR and chemical formula using IR Spectroscopy, Mass Spectroscopy, C NMR, and H NMR graphs for five unknown compounds. In order for me to answer the questions, I first need to determine which compound the graphs are describing. I know how to determine SODAR and chemical formulas, bu ...continues
1H NMR spectrum interpretation
I need to: provide an interpretation for all protons in the 1H NMR spectrum of 4-vinylbenzoic acid and indicate how the 1H NMR spectrum of the corresponding methyl ester would differ from that of the acid. On the 1H spectrum, I see a quartet around 6.8ppm which I don't know where it comes from, because I think it should be a ...continues
