Case study [n]M, = 2.5 V - = The intrinsic viscosity of polymer solution follows Mark-Houwink-Sakurada relation: [n] = KM. For polystyrene (PS) in tetrahydrofuran, Kps = 3.71 x 10-4dl/g and Aps = 0.64. For poly(methyl methacrylate) (PMMA) in tetrahydrofuran, KPMMA = 4.18 x 10-5dl/g and Apmma = 0.83. (1) What is the hydrodynamic volume of PS and PMMA with molecular weight of 1,000,000 g/mol? (Note that dl = 10-4 m3) (2) A SEC has been calibrated by PS standards and find out the relationship between the hydrodynamic volume (Vn) and the elution volume (VR(ML)) following: log(2.5NAVN) 21.72 1.5578 x VR + 0.06325 x V - 0.00102 x VGA monodisperse PMMA with unknown molecular weight has an elution volume of VR 29.3 mL, please identify the molecular weight of this PMMA. =