6.2.2 Amino acids, amides and chirality Flashcards
1
Q
what is the general formula for an alpha amino acid
A
RCH(NH2)COOH
2
Q
How does a carboxylic acid group react with an acid
A
NH2 turns into NH3+ (plus is on N)
and Cl- (or what the salt is)
3
Q
how does a carboxylic acid group react with an alkali
A
COOH turns into COO-
and you get Na+ (or what the salt is)
and H2O
4
Q
What is an optical isomerism
A
-an example of a stereoisomer
-a non-superimposable mirror image about a chiral centre
5
Q
what is a chiral centre
A
a carbon atom with 4 different groups attached
6
Q
how do you calculate the number of stereoisomers using the number of chiral carbons
A
number of stereoisomers= number of chiral carbons x 2
7
Q
how to create optical isomers
A
in bookelt
8
Q
A
