Describe fluorescence correlation spectroscopy and how it is used to study protein structure.
4. Describe heterocyclic aromatic compounds. Describe fullerene compounds. Explain the chemistry of sunscreen in relations to aromatic compounds.
4. Describe heterocyclic aromatic compounds. Describe fullerene compounds. Explain the chemistry of sunscreen in relations to aromatic compounds.
Describe how IR spectroscopy might be used to monitor the progress of the following reaction: H2Cr04 OH OH H20, H2S04 1-butanol butanoic acid
Log-log plots are often used for ICP emission spectroscopy data. Why? Will a method that gives a linear beer’s law plot necessarily also give a linear log-log plot? Will using a log-log plot affect the calibration? Explain.
Describe how IR spectroscopy could be used to determine which of two compounds has stronger hydrogen bonding.
Exp. 12: Spectroscopy (a) Describe how you can identify the light sources used in this lab by their apparent color (as seen with the naked eye). (b) What are the advantages of using a spectrometer for light source identification over identifying by apparent color?
Describe how you would
distinguish between cyclohexanecarboxylic acid using infrared
spectroscopy. Their structures are shown below.
Please explain how to solve in steps. Thank you.
5. Describe how you would distinguish between cyclohexanol and cyclohexanecarboxylic acid using infrared spectroscopy. Their structures are shown below. OH OH
(c) Why is atomic absorption not used for qualitative analysis? {2} (d) Briefly describe how background correction in atomic absorption spectroscopy is achieved by the following methods, Zeeman 11) Two line method
Can you suggest why the aldol condensation between benzaldehyde and cyclopentanone proceeds more slowly than benzaldehyde and acetone?
In THE PREPARATION OF DIBENZYLIDENEACETONE from Benzaldehyde and acetone using NaOH as a catalyst show a ‘curly arrow’ mechanism for the conversion of acetone to dibenzylideneacetone, and What would be the product if a 1:1 mixture of benzaldehyde and acetone were used in this reaction?