A method of measuring zeta potential involves observing this process in an electric field. For 10 points each:
[10m] Name this process surveyed from multiple angles in “dynamic” and “static” methods of determining a polymer’s radius of gyration. A Zimm plot depicts the change in intensity due to this process.
ANSWER: light scattering [or word forms of scattered; accept dynamic light scattering, static light scattering, multi-angle light scattering, DLS, SLS or MALS]
[10e] This quantity’s distribution can be extracted from the autocorrelation of scattering intensity over time. This quantity can be measured in daltons.
ANSWER: molecular weight [accept molecular mass or molar mass; prompt on size or length]
[10h] The y-intercept of a Zimm plot can be divided into a term for weight and a term for this quantity times concentration. The BWR equation of state requires more constants to express this quantity than its relatives, but it only takes one Mayer f-function to express this quantity exactly.
ANSWER: second virial coefficient [or B2; or A2; prompt on virial coefficients]
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