buffers - 2024 PLAYTIME - Buzzpoints App

Question

A constant factor of ln-10 appears in expressions for a certain quantity related to these systems. For 10 points each:

[10h] Name these systems that may be parametrized using variables denoted alpha that sum to one for corresponding pairs of components. The capacity of these systems is sometimes referred to as the “inverse slope.”

ANSWER: buffers

[10e] Buffer capacity is maximized when the concentrations of the acid and base have this mathematical relationship. Le Chatelier’s principle drives systems towards a state where the rate of the forward and reverse reactions have this relationship.

ANSWER: they are equal [accept equilibrium]

[10m] Equilibrium problems for complex buffer systems may be solved by the namesake “balance” equations for these two quantities. The ratio between these two quantities is plotted against relative abundance in spectra obtained from techniques like ESI and “tandem” spectrometry.

ANSWER: mass AND charge [accept mass-charge balance or mass-to-charge ratio; prompt on MCB or m/z or m/Q]

<DN, Chemistry>

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Summary


2025 PLAYTIME @ CWRU	12/10/2024	Y	5	12.00	100%	20%	0%
2025 PLAYTIME @ Claremont	12/10/2024	Y	5	10.00	80%	20%	0%
2025 PLAYTIME @ Florida	12/10/2024	Y	2	10.00	100%	0%	0%
2025 PLAYTIME @ Florida	12/10/2024	Y	1	10.00	100%	0%	0%
2024 PLAYTIME @ Harvard	04/26/2025	Y	4	10.00	75%	25%	0%
2024 PLAYTIME @ JHU	10/26/2024	Y	8	10.00	88%	13%	0%
2025 PLAYTIME @ Northwest	12/10/2024	Y	4	12.50	75%	25%	25%
2025 PLAYTIME Online	04/26/2025	Y	8	17.50	100%	75%	0%
2025 PLAYTIME @ Sheffield	12/10/2024	Y	6	13.33	100%	33%	0%
2025 PLAYTIME @ Sheffield	12/10/2024	Y	1	10.00	100%	0%	0%
2024 PLAYTIME @ UBC	10/05/2024	Y	8	12.50	100%	25%	0%
2024 PLAYTIME @ Virginia Tech	07/11/2025	Y	3	13.33	100%	33%	0%
2024 PLAYTIME @ WashU	10/12/2024	Y	6	15.00	83%	67%	0%

Data


Michigan A	Michigan B	0	10	0	10
Caltech	Art of Premature Signaling	0	10	10	20
Claremont A	Claremont B	0	10	0	10
UCLA A	UCLA B	0	10	0	10
UCSB	UCSD	0	0	0	0
P.C.‚ Daniel‚ Michel‚ and Jason B	girl 15 whale i mean they	0	10	0	10
Pittsburgh	Oberlin	0	10	10	20
Ohio State A	Ohio State B	0	10	0	10
Ohio State C	Ohio State D	0	10	0	10
Qin Shi Huang's Immortality Poison	Billy's Bastion	0	10	0	10
Too much from you lately	Edwin Laundrorat's Long-Lost Man Unclothès Rat Degrosses	0	10	0	10
Project2025BC: Make Assyria Great Again	Keeping Up With the Cardassians	0	10	0	10
Michigan D	Michigan C	0	10	0	10
Belmont	BU	0	0	0	0
Brandeis	Harvard	0	10	0	10
Lexington	Brown	0	10	10	20
MIT	RIT	0	10	0	10
CWRU	Johns Hopkins A	0	10	10	20
George Mason C	George Mason A	0	10	0	10
Catholic University of America	George Mason B	0	0	0	0
NYU B	George Washington	0	10	0	10
Johns Hopkins B	Haverford B	0	10	0	10
Maryland A	Georgetown	0	10	0	10
NYU C	Maryland B	0	10	0	10
Haverford A	Rutgers	0	10	0	10
UW A	Alberta	0	10	0	10
Arizona State University A	Washington Connections	10	10	10	30
South Dakota School of Mines	Arizona State University B	0	0	0	0
UW B	Carleton	0	10	0	10
mongeese	2 Italians, 2 Poles, All Noles	0	10	10	20
MSJ	Goober Gang	0	10	10	20
Gruh	Auburn 2026	0	10	10	20
Mahjonng Masters	we need new names	0	10	0	10
Notre Dame + Epic Games	Quatumvirate	0	10	0	10
Mike Dukakis Tank Battalion	Trip-Hop Quizzer Tricky	0	10	10	20
evil women enjoyers	Monsieur Hulot's Academic Team	0	10	10	20
Egypt Airlines Haters	Free Agents 1	0	10	10	20
Sheffield B	Sheffield A	0	10	0	10
Birmingham	Imperial B	0	10	0	10
Cambridge	Warwick B	0	10	10	20
LSE	Imperial A	0	10	0	10
Manchester	Sheffield C	0	10	10	20
Lancaster	Warwick A	0	10	0	10
Edinburgh	Warwick C	0	10	0	10
Toronto A	Toronto D	0	10	10	20
Guelph	Toronto B	0	10	0	10
Toronto C	McGill B	0	10	0	10
Toronto Metropolitan	Toronto E	0	10	0	10
UBC	Simon Fraser	0	10	0	10
Mac A	Waterloo A	0	10	10	20
Waterloo C	Waterloo B	0	10	0	10
4 quizbowl pros go Virginia on North Carolina	Ashurbanipal’s Drag Race	0	10	10	20
McGill A	Ottawa A	0	10	0	10
Chicago B	Illinois C	0	10	10	20
Missouri	Illinois A	0	0	10	10
Iowa State	Chicago A	0	10	0	10
SIUE	WashU Squirtle	0	10	10	20
Truman State	WashU Bulbasaur	0	10	0	10
Illinois B	WashU Charmander	0	10	10	20
Even in Blacksburg There I Am	Adrianne Lenker 4 Nobel Lit Prize 2K65	0	10	0	10
Master and Margaritaville	Somehow Paula Deen Returned	0	10	0	10