C
N
O
H
Caffeine
8
4
2
10
cacao
7
4
2
8
A few similarities between the structures of chocolate and caffeine is that they both have equal
nitrogen and oxygen atoms and an overall similar shape. One difference between the two is that
chocolate is more complex and has a larger structure than caffeine as well as less carbon and
hydrogen.
The physical properties of caffeine are that it is a bitter, white, odorless, crystal powder with a
density of 1.23 g/cm3 and a melting point of 455-460 degrees fahrenheit. The physical
properties of chocolate are that it has low viscosity and it is smooth with the fat composition of
cocoa butter dictating its melting point. It can crystallize into six different forms which are known
as polymorphs.
My family didn’t know much chemically about the two and could recognize the difference in
structure.