IUPAC and NomenclaturehardNUMERICAL

Consider the compound 2-amino-3-hydroxypropanoic acid. How many total heteroatoms (atoms other than IUPAC and Nomenclature Chemistry Question

Question

Consider the compound 2-amino-3-hydroxypropanoic acid. How many total heteroatoms (atoms other than Carbon and Hydrogen) are present in one molecule of this compound?

Answer: 4

💡 Solution & Explanation

The structural formula is $HO-CH_2-CH(NH_2)-COOH$. The heteroatoms include 1 Oxygen in the hydroxy group, 1 Nitrogen in the amino group, and 2 Oxygens in the carboxylic acid group. Total heteroatoms = $1 + 1 + 2 = 4$.

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