6.2.2 Amino Acids, Amides, And Chirality Flashcards
1
Q
Reactions of amino acids
A
Can react with acids due to amine group to form salts
Can react with alkalis due to carboxylic acid group to form salts
Can react with alcohols due to carboxylic acid group to form esters
2
Q
How are zwitter ions affected by pH
A
Low pH: behaves as base, COO- gains proton
High pH: behaves as acid, NH3+ loses H+
3
Q
Definition of optical isomerism
A
Example of stereoisomerism in which molecules that contain a chiral centre can form 2 non-superimposable mirror image structures (called enantiomers)
