6O- Organic Analysis

Question 1

What is mass spectrometry used for

Answer 1

Finds the Mr of a compound

Question 2

What’s the fingerprint region on IR spectra

Answer 2

Below a wavelength of 1500, unique to each molecule

Question 3

How to match an IR spectra to a molecule

Answer 3

Mark a line at 1500 wavelength, do not use any value less than this

Look at large peaks and match the wavelength number to the bond on the data sheet and write down bond next to peak

Match the bonds on spectra to molecule

Question 4

How does IR absorbed by CO2, methane and water vapour cause global warming

Answer 4

UV passes into earths atmosphere, IR is radiated out and absorbed by C=O bonds in CO2, energy transferred to other molecules through collisions warming atmosphere