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- What molecule does this IR sprectrum show? Please explain how you got this answer. Thank You!This is about Beer-Lambert’s Law and UV-vis Spectroscopy: 1. How are concentration and absorbance related?2. How can you determine the concentration of an unknown sample?Consider the structures of cholesterol and ?-carotene. Which do you think will have the highest Rf value if the solvent used was acetone - hexane (20:80)? Why?
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- To resolve the Na D lines 591.0 and 591.5 nm, what resolution is required if this is first order?Chemistry I need help with a homework problem. A particular organic molecule has a weight of 92 and provides the given mass spectrum below. a. Draw the structure of the molecule that matches the graph below. b. Demonstrate the electron-pushing arrows that account for the given fragmentation masses.did i do this correctly? also assigning the mass spec how do i know where to split the molecule? does it split more than once?