organic anaylsis

Question 1

mass spectrometry can be used to

Answer 1

determine the molecular formula of a compound

Question 2

what is infrared spectormometry

Answer 2

analytical technique that uses infrared radiation to determine function groups present in organic compounds, IR is passed through a sample where the different typos of bonds absorb the radiation at characteristic wavenumbers. commonly used in drug sample testing

Question 3

fingerprint region

Answer 3

area of spectrum 1500cm-1 and below, this contains tiny differences from species to species which act as molecules ‘fingerprint’ allowing it to be identified

Question 4

exam technique for answering an IR question

Answer 4

always quote the absorption range for the peak and the type of bond it represents

Question 5

shape of C=O group

Answer 5

sharp peak

Question 6

shape of OH acid group

Answer 6

hand

Question 7

shape of OH alchol group

Answer 7

finger

Question 8

what does multiple peaks in mass spectrum mean

Answer 8

isotopes present in mixture