AQA GCSE Chemistry Organic acids
This page covers the following topics:
1. Carboxylic acids
2. Amino acids
A carboxylic acid is an organic compound containing a carboxyl group (a carbon double bonded to an oxygen atom (O) and single bonded to an hydroxide (OH)) written as C(=O)OH. The formula of a carboxylic acid is R-COOH, with the R representing a carboxyl group. Carboxylic acids are weak acids.
Amino acids are organic compounds, containing Carbon, Oxygen, Hydrogen, Nitrogen and a variable side chain group, here represented by 'R'. A chain of amino acids connected by peptide bonds forms a protein.
What is the name of the bonds between amino acids in protein chains?
Give the IUPAC name of the amino acid pictured, Valine.
Draw a diagram showing a condensation reaction occuring joining two amino acids to form a peptide bond in a protein.
Why are carboxylic acids considered weak acids?
Give the IUPAC name of the amino acid pictured, Leucine.
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