Question
SIT (S I T) theory estimates this quantity in solutions with high electrolyte concentrations. For 10 points each:
[10m] Name this quantity symbolized gamma, which represents the deviation from ideality in a mixture.
ANSWER: activity coefficient [reject “activity”] (SIT stands for specific ion interaction.)
[10h] Two answers required. These two scientists co-name a theory that predicts activity coefficients for ions in dilute solutions, which derives from the Poisson-Boltzmann equation. The activity coefficient is proportional to the square root of the ionic strength in these two scientists’ “limiting law.”
ANSWER: Peter Debye AND Erich Hückel [prompt on partial answer; accept Debye–Huckel theory or Debye–Huckel equation or Debye–Huckel limiting law]
[10e] This other scientist first proposed the alternative SIT theory. Acids are classified as proton donors in a different theory that this scientist developed with Thomas Martin Lowry.
ANSWER: Johannes Nicolaus Brønsted [accept Brønsted–Guggenheim–Scatchard or Brønsted–Lowry theory]
<Chemistry>
Summary
| 2024 ACF Winter at UC Berkeley | 2024-11-16 | Y | 2 | 15.00 | 100% | 0% | 50% |
| 2024 ACF Winter at Lehigh | 2024-11-16 | Y | 6 | 13.33 | 83% | 50% | 0% |
| 2024 ACF Winter at Northwestern | 2024-11-16 | Y | 4 | 15.00 | 100% | 50% | 0% |
| 2024 ACF Winter at Ohio State | 2024-11-16 | Y | 4 | 10.00 | 75% | 0% | 25% |
| 2024 ACF Winter at Online | 2024-11-16 | Y | 4 | 10.00 | 100% | 0% | 0% |
| 2024 ACF Winter at Central Florida | 2024-11-16 | Y | 3 | 13.33 | 67% | 0% | 67% |
| 2024 ACF Winter at Oxford | 2024-11-16 | Y | 8 | 13.75 | 75% | 13% | 50% |
| 2024 ACF Winter at Brandeis | 2024-11-16 | Y | 6 | 10.00 | 83% | 17% | 0% |
Data
| Bard A | Princeton A | 0 | 0 | 10 | 10 |
| Columbia A | Rutgers A | 10 | 0 | 10 | 20 |
| Hopkins B | Columbia B | 10 | 0 | 10 | 20 |
| Lehigh A | Penn A | 0 | 0 | 0 | 0 |
| Haverford A | Penn B | 10 | 0 | 10 | 20 |
| Rutgers C | Penn State A | 0 | 0 | 10 | 10 |
| Miami | Indiana B | 0 | 0 | 10 | 10 |
| Purdue C | Notre Dame | 0 | 0 | 10 | 10 |
| WashU B | UIUC A | 10 | 0 | 10 | 20 |
| Northwestern A | WashU D | 10 | 0 | 10 | 20 |
| CWRU A (UG) | Kenyon B (DII) | 0 | 0 | 0 | 0 |
| Michigan B | Michigan State B (UG) | 0 | 0 | 10 | 10 |
| Ohio State A (UG) | Michigan D (DII) | 0 | 10 | 10 | 20 |
| CWRU B (UG) | Ohio State C (DII) | 0 | 0 | 10 | 10 |
| Iowa | Central Oklahoma | 0 | 0 | 10 | 10 |
| NYU A | WUSTL A | 0 | 0 | 10 | 10 |
| Texas A | Missouri | 0 | 0 | 10 | 10 |
| Vassar A | Ole Miss | 0 | 0 | 10 | 10 |
| Florida Tech A | UF B | 0 | 0 | 0 | 0 |
| UF A | Florida Tech B | 0 | 10 | 10 | 20 |
| UCF A | UCF B | 0 | 10 | 10 | 20 |
| Birmingham | Cambridge C | 0 | 0 | 10 | 10 |
| Imperial B | Cambridge A | 0 | 0 | 10 | 10 |
| Cambridge B | Durham A | 0 | 10 | 10 | 20 |
| Cambridge D | Warwick A | 10 | 10 | 0 | 20 |
| Manchester | Edinburgh | 0 | 0 | 10 | 10 |
| Oxford B | Imperial A | 0 | 0 | 0 | 0 |
| Oxford A | Bristol A | 0 | 10 | 10 | 20 |
| Durham B | Vanderbilt | 0 | 10 | 10 | 20 |
| Amherst A | A Brandeis Supreme | 10 | 0 | 10 | 20 |
| Bowdoin A | Clark A | 0 | 0 | 10 | 10 |
| Diamond Brandeis | BU B | 0 | 0 | 0 | 0 |
| MIT A | Tufts B | 0 | 0 | 10 | 10 |
| Yale A | Brandeises Brew | 0 | 0 | 10 | 10 |
| Boston University A | Yale B | 0 | 0 | 10 | 10 |
| Stanford A | Berkeley C | 0 | 0 | 10 | 10 |
| Berkeley A | Stanford M | 0 | 10 | 10 | 20 |