A synthetic polypeptide biomaterial is being engineered for targeted drug-delivery applications. The monomer used is an α\alphaα-amino acid with the general formula RCH(NH2)COOH\text{RCH(NH}_2\text{)COOH}RCH(NH2)COOH.
The R\text{R}R group of this amino acid consists only of carbon and hydrogen atoms, and has a molar mass of 43 g mol−143\text{ g mol}^{-1}43 g mol−1.
A linear polymer chain is formed by the condensation polymerisation of 580580580 molecules of this α\alphaα-amino acid.
Determine the molar mass of this polymer.
Give your answer to the nearest whole number.
4 exam-style questions on OCR A A Level Chemistry Amino acids, amides and chirality. Each one has a worked solution and a mark scheme showing where the marks go.