JEE Advanced 2011 Chemistry question
A decapeptide (Mol. Wt. 796) on complete hydrolysis gives glycine (Mol. Wt. 75), alanine and phenylalanine. Glycine contributes 47.0 % to the total weight of the hydrolysed products. The number of glycine units present in the decapeptide is
Answer: 6
Solution
A decapeptide contains 10 amino acid residues joined by 9 peptide bonds; complete hydrolysis adds 9 molecules of water. Total mass of hydrolysis products per mole $=
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