A sample of 3 mg of polystyrene (which has a Mn = 120,000 g/mol.) is synthesized and dissolved in 5 ml of tetrahydrofuran, which is a good solvent for polystyrene. This concentration is regarded to be very dilute. Using light scattering techniques, the polystyrene is measured to have a coil size of 5.4 nm. A second polystyrene sample, with a Mn = 360,000 g/mol., is synthesized. What is its coil size expected to be?