Formulas To Know Flashcards

(2 cards)

1
Q

Degree Of Unsaturation

A

DOU = [n-(m/2)] + 1
Tells you how many rings and double bonds are in the molecule of interest. Can be calculated from the molecular formula CnHm

0 DOU = alkane
1 DOU = cyclic alkane or alkene
2 DOU = 2 alkenes; ring + alkene; alkyne
4 DOU = Benzene

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2
Q

Formal Charge

A

FC = [# of valence electrons of neutral atom] - [non-bonded electrons + number of bonds]
Describes where charges are located in molecules

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