basically everything i hope Flashcards
1
Q
finding empirical formula from percentages
A
check they add to 100
divide by ass number
divide by smallest number
times by 2 if odd
2
Q
finding molecular formular from empirical
A
find mass from mass spec
find closest multiple of empirical mass
3
Q
how to work out fragments
A
find mass differences
these are probably CH3 fragments or a functional group
4
Q
how to count carbon environments on 13C NMR
A
just count the number of lines
