This quantity can be determined by finding the y-intercept on a plot of reduced osmotic pressure versusconcentration in a technique called membrane osmometry.
This quantity can be determined by finding the y-intercept on a plot of reduced osmotic pressure versusconcentration in a technique called membrane osmometry. This quantity can also be determined bymeasuring turbidity at different concentrations and angles, using light scattering, and double extrapolatingthe data to zero, as depicted on a Zimm plot. This quantity is related to intrinsic viscosity by theMark-Houwink-Sakurada equation. By using Carothers equation, this quantity can be calculated as themass of the repeating unit over one minus the monomer conversion. The polydisperity index is given by theratio of the weight average and number average forms of this quantity. For 10 points, identify this quantitythat determines many physical properties of polymers that shares its name with the mass of one mole of asubstance.
This quantity can be determined by finding the y-intercept on a plot of reduced osmotic pressure versusconcentration in a technique called membrane osmometry.
 number average molecular weight [or weight average molecular weight; or absolute molecular weight; or viscosity average molecular weight; or molar mass or molecular mass in place of "molecular weight"; prompt on molecular weight distribution or molar mass distribution]