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 gl…

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

Accepted Answer

Correct answer: 6. 6 Sol. Molecular weight of decapeptide = 796 g/mol Total bonds to be hydrolysed = (10 – 1) = 9 per molecule Total weight of H_2O added = 9 × 18 = 162 g/mol Total weight of hydrolysis product = 796 + 162 = 958 g Total weight % of glycine (given) = 47% Total weight of glycine in product = 9 5 8×4 71 0 0 = 450 g Molecular weight of glycine = 75 g/mol Number of glycine molecule = 4 5 07 5 = 6

$A decapeptide (Mol. Wt. 796) on complete hydrolysis gives glycine (Mol. Wt. 75), alanine and phenylalanine. Glycine contributes 47.0 % to the total weight of the hydrolysed products. The number of glycine units present in the decapeptide is$

Solution

More Biomolecules PYQs