Question

The distribution of this quantity is inferred from the shape of a type IV isotherm in the Barrett-Joyner-Halenda method. Materials with a “controlled” value of this quantity serve as solid supports for oligo·nucleotide synthesis. When expressed in a non-SI unit, a series of 3 materials with a “type A” structure have values of this quantity equal to 3, 4, or 5, depending on whether they have potassium, sodium, or calcium ions. In a typical SI unit, whether this quantity is less than 2, between 2 and 50, or greater than 50 determines if the material (-5[1])is described with the prefix (*) “micro,” (10[1])“macro,” or “meso.” (-5[2])Beads with a fixed, (-5[1])small value (-5[1])of this quantity (-5[1])are used to separate proteins in size-exclusion (-5[1])chromatography. (-5[1])For 10 points, zeolite-based molecular sieves have values as low as 3 Angstroms (10[1])for what quantity which characterizes the holes in a material? (10[1])■END■ (10[7]0[5])

ANSWER: pore size [or pore diameter; accept pore volume before “equal to 3”, prompt on hole size or hole diameter by asking “What’s the technical term for the holes?”; prompt on size or radius or diameter by asking “The size/radius/diameter of what features?” reject “porosity”] (The third sentence refers to 3 Angstrom, 4 Angstrom, and 5 Angstrom molecular sieves, while the fourth sentence refers to the classification of materials as microporous, mesoporous, or macroporous.)
<BB>
= Average correct buzz position

Summary

2023 BHSU @ Northwestern02/25/2023N683%17%50%120.40
2023 BHSU @ Maryland03/11/2023Y30%0%67%0.00
2023 BHSU @ Berkeley03/18/2023Y367%0%100%143.50
2023 BHSU @ Yale04/08/2023Y3100%0%33%129.33
2023 BHSU @ Sheffield04/15/2023Y2100%0%50%144.00
2023 BHSU @ Waterloo04/15/2023Y3100%0%33%140.33

Buzzes

PlayerTeamOpponentBuzz PositionValue
Swapnil GargBerkeley AStanford B94-5
Adam Silvermannats is supposed to mean you all have gone softWatching Arthur Delot-Vilain at Chicago Open Made Me Like French People Again10010
Joey Montoya[Insert Lawyer Joke Here]It's Joever103-5
Andrej VukovicCameron et al.The Passion According to C.H.103-5
EvanBroken Imperial NomadsBuzzers Karamazov107-5
Vincent DuThe Perfection of Wisdom in 8,000 NegsFan-tastic Negs and Where to Find Them109-5
Vittal BhatGlass Onyen: A Knives Out MysteryRutgers Diaspora112-5
Vinu HariharBerkeley BStanford A119-5
Walter ZhangUG Championship Players (and Mazin)meet the new weird, same as the old weird120-5
Liam KusalikThe Vulture's Guide to BuzzNeg 5! Playing Quizbowl, Liddy Style13310
Natan HoltzmanStanford ABerkeley B14310
Hari ParameswaranIt's Joever[Insert Lawyer Joke Here]1440
Allan LeeStanford BBerkeley A14410
Jonathan MaginMaryland B+Maryland A1440
JJ TsaiRutgers DiasporaGlass Onyen: A Knives Out Mystery1440
Jacob EgolFan-tastic Negs and Where to Find ThemThe Perfection of Wisdom in 8,000 Negs1440
Caleb KendrickMaryland AMaryland B+1440
RahimBuzzers KaramazovBroken Imperial Nomads14410
KrolMagisters LudiOxford Hornets14410
Benjamin ChapmanThe Passion According to C.H.Cameron et al.14410
Russell NipMilan et al.Parth et al.14410
Kevin Wangmeet the new weird, same as the old weirdUG Championship Players (and Mazin)14410
Forrest WeintraubColumbia BOlmo (Bonus) Bagelry14410