Round 11: Tossup 12
In 2015, a Merck brand whose name references this process merged with Sigma–Aldrich. A “sterile” form of this process can be performed using a PES membrane fitted to a syringe. A component of BSCs performs a highly efficient form of this process through diffusion, interception, impaction, and electrostatic attraction. Diatomaceous earth aids this process by forming a “cake.” A Büchner funnel connected to an aspirator is used for the “vacuum” form of this process. HEPA (“HEP-uh”) units perform this process, which can also be performed using specialized paper with uniform pore sizes to block particulate matter. For 10 points, name this process of separating solids from a fluid. ■END■
ANSWER: filtration [accept word forms like filtering; accept filter paper; accept HEPA filters; accept vacuum filtration; accept filter cakes; accept filter aids; accept membrane filters or membrane filtration; accept sterile filtration; prompt on air purification or word forms like purifying; prompt on separation or word forms like separating; prompt on HEPA or high efficiency particulate air or high efficiency particulate arresting until “HEPA” is read ] (The brand in the first line is Merck Millipore, which merged with Sigma–Aldrich to create MilliporeSigma.)
<JZ, Chemistry> | Packet K
= Average correct buzz position
Buzzes
| Player | Team | Opponent | Position | Value |
|---|---|---|---|---|
| Charlie Ruff | McGill A | Ottawa A | 57 | -5 |
| Jennifer Zhu | McGill C | Ottawa B | 57 | -5 |
| Galen Mueller | McGill B | Ottawa D | 73 | -5 |
| Alden Thompson | Carleton A | Ottawa C | 74 | 10 |
| Gus Morin-Strom | Carleton B | McGill E | 94 | 10 |
| Chen Nagahawatte | Ottawa B | McGill C | 106 | 10 |
| Rebecca Li | Ottawa A | McGill A | 107 | 10 |
| John Rootham | Ottawa D | McGill B | 107 | 10 |
Summary
| Tournament | Edition | TUH | Conv. % | Neg % | Average Buzz |
|---|---|---|---|---|---|
| UK (North) | UK | 5 | 100% | 20% | 81.60 |
| UK (South) | UK | 8 | 100% | 38% | 85.25 |
| Northern California | US | 1 | 100% | 0% | 69.00 |
| Southern California | US | 7 | 100% | 0% | 54.71 |
| Eastern Canada (1) | US | 5 | 100% | 60% | 97.60 |
| Eastern Canada (2) | US | 9 | 100% | 11% | 65.78 |
| Florida | US | 1 | 100% | 100% | 107.00 |
| Great Lakes | US | 12 | 100% | 8% | 74.25 |
| Lower Mid-Atlantic | US | 9 | 100% | 44% | 91.44 |
| Upper Mid-Atlantic | US | 12 | 83% | 17% | 68.50 |
| Midwest | US | 9 | 100% | 11% | 73.67 |
| North | US | 1 | 100% | 0% | 60.00 |
| Northeast | US | 12 | 92% | 42% | 84.82 |
| Pacific | US | 9 | 100% | 11% | 87.22 |
| South Central | US | 4 | 100% | 25% | 76.00 |
| Southeast | US | 13 | 100% | 15% | 76.00 |
| Upstate NY | US | 5 | 100% | 0% | 76.00 |