Chemistry Reference
In-Depth Information
Comment on the number of possible proteins with 20
different amino acids in a molecule containing 100 or
more residues. (
Hint:
The amino acids are different on
each end of each molecule.)
20.89
Give the position numbers of the methyl groups in each
isomer of dimethylnaphthalene, a planar molecule. The
positions on naphthalene are
20.90
In dilute aqueous solution, the amino end of an amino
acid molecule acts as a base, and the acid end acts as an
acid. Write a line formula for an amino acid in neutral
solution after the two ends of the same molecule have
reacted with each other.
20.91 Explain why no addresses (positional numbers) need to
be used in the names (a) butanal and (b) butanone.
20.92
Write a condensed formula for methyl 2-propyl ether.
20.93
Write the line formula for 1,3-butadiene.
8
1
2
3
7
6
5
4
