Molecular formula of repeating unit is C10H8O4
Rg= square root of (nl2/6)
Rg = Radius of gyration.
n = degree of polymerization.
l = length of each repeating unit.
for calculating n;
M xPolymer = M x repeat x n
2.3∗10^4g/mol= [192.16g/mol]∗n
n=(2.3∗10^4g/mol)/(192.16g/mol)=1.20∗10^2.
The molar mass of repeating unit = 192.16 g/mol.
Rg= square root of (nl2/6R )
= square root of (1.2∗10^2∗(1.075∗10(−9))^2/6)
= Rg= 4.8nm
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