Question
The method of cumulants is a quantitative analysis method for this technique. For 10 points each:
[10h] Name this technique that moves a monochromatic laser through a sample and measures fluctuations of intensity to detect Brownian motion. This technique is used to analyze the distribution of particles in solution.
ANSWER: dynamic light scattering [or DLS]
[10e] Dynamic light scattering is often applied to analyze solutions of these compounds. Repeating subunits called monomers make up these large macromolecules.
ANSWER: polymers
[10m] DLS of polymer solutions uses the diffusion coefficient to calculate a “hydrodynamic” form of this quantity. For a random coil polymer, that differs from the [emphasize] “[this quantity] of gyration” given by static light scattering.
ANSWER: radius [accept hydrodynamic radius or radius of gyration]
<Chemistry>
Summary
| 2024 ACF Winter at UC Berkeley | 2024-11-16 | Y | 3 | 16.67 | 100% | 67% | 0% |
| 2024 ACF Winter at Clemson | 2024-11-16 | Y | 1 | 0.00 | 0% | 0% | 0% |
| 2024 ACF Winter at Ohio State | 2024-11-16 | Y | 2 | 15.00 | 100% | 50% | 0% |
| 2024 ACF Winter at Online | 2024-11-16 | Y | 2 | 5.00 | 50% | 0% | 0% |
| 2024 ACF Winter at UBC | 2024-11-16 | Y | 2 | 15.00 | 100% | 50% | 0% |
| 2024 ACF Winter at Oxford | 2024-11-16 | Y | 5 | 12.00 | 100% | 20% | 0% |
Data
| Emory B | Georgia Tech D | 0 | 0 | 0 | 0 |