Question
Chromatofocusing slowly changes this quantity in the stationary phase to fractionate proteins. The distribution of oxidation state versus this quantity is plotted on a metal’s speciation diagram. Tertiary amines only dissolve if this quantity is low enough for the nitrogen to be tetravalent. Colloids are least stable when this quantity equals the isoelectric point, so the surface (*) charge is zero. This quantity determines if redox half-reactions should be balanced using cat·ions or an·ions. This quantity and the equilibrium constant dictate how much “HA” dissociates in the Henderson–Hasselbalch equation. For 10 points, name this measure of a solution’s proton concentration on a logarithmic scale between zero and fourteen. ■END■
ANSWER: pH [or power of hydrogen; accept hydrogen concentration or hydronium concentration or proton concentration or H+ concentration or H3O+ concentration; reject “acidity” or “pKa” or “Ka”]
<Adam Silverman, Science - Chemistry> ~27523~ <Editor: Adam Silverman>
= Average correct buzz position
Buzzes
| Player | Team | Opponent | Buzz Position | Value |
|---|---|---|---|---|
| Jakub Hel | Hoover A | Heights | 26 | 20 |
| Benny Feldman | Hastings | St. Mark's | 41 | 20 |
| Tyler Song | Winston Churchill A | Innovation Academy A | 72 | 10 |
Summary
| Tournament | Edition | Exact Match? | TUH | Conv. % | Power % | Neg % | Average Buzz |
|---|---|---|---|---|---|---|---|
| 2024 PACE NSC | 06/08/2024 | Y | 3 | 100% | 67% | 0% | 46.33 |