VGR 9. This is the TLC plate for the solvent: Ethyl acetate 50% / acetone 50% V is crystal violet, G is bromocresol green and R is methyl Red. Determine the Rf for each one (Report to 2 # after the decimal) HTML Editor 1 2 3 4 56 7 8

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Q: Et H. Me H. Br

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Q: Transmitance 0.8 0.6 0.4 0.2 4000 3000 INFRARED SPECTRUM 2000 1000

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A: From Beer lambert’s Law -  A =∈bCWhere A = Absorbance ∈b =Constant or slopeC = concentration

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Q: 3295 IR Spectrum (liquid film) 4000 3000 2114 2000 m nnt 1600 (cm¹) 1200 800

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Q: *20-13 Calculate the ratio of the (M + 2)* to M and the (M + 4)* to M" peak heights for (a) CoH Br,,…

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Q: Maria was tasked to determine the concentration of a Fe2(SO4)3 solution. She prepared 5 different…

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Q: How do I do question #3 about correspondence between % transmittance and absorbance? Thank you

A: The relation between absorbance (A) and Tansmittance (T) is :

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Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.