Three mixtures are prepared from three very narrow molar mass distribution polystyrene samples with molar masses of 10,000, 30,000, and 100,000 g/mol as indicated below:
a. equal numbers of molecules of each sample
b. equal masses of each sample
c. by mixing in the mass ratio 0.145: 0.855 the two samples with molar masses of 10,000 and 100,000 g/mol.
1. for each of the mixtures, calculate the number-average and weight-average molar masses.