Pouring biochem into this event?zerasaw wrote:I've never done this event (I'm currently in AP Chem) but I think that the stoich calculations will probably use insane things such as complexes, free radicals, obscure, massive hydrocarbons, and such.
Chem Lab C
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Re: Chem Lab C
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Re: Chem Lab C
Knowing the concepts inside and out. General chem knowledge helps too. Even as somebody who is currently tutoring AP Chemistry, my teammate and I will have a hard time here in Maryland. It is insanely competitive.thsom wrote:What sets apart teams in Chem Lab?
Exothermic reactions? I studied them before they were cool.
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Re: Chem Lab C
Hey guys! So this is my first year in division C, but I've competed in division B for 4 years. The national website doesn't have good information on this event, does anyone have any website suggestions or books I could get to study? Thanks!
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Re: Chem Lab C
I suggest any AP Chemistry textbook/AP Chemistry review bookAjullie1105 wrote:Hey guys! So this is my first year in division C, but I've competed in division B for 4 years. The national website doesn't have good information on this event, does anyone have any website suggestions or books I could get to study? Thanks!
If you can't explain it simply, you don't know it well enough. -Albert Einstein
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Bayard Rustin Science Olympiad 2010-2014
Pittsburgh Allderdice Assistant Coach
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Re: Chem Lab C
How do you choose which indicator to use? I don't think you can predict the pH of the equivalence point until you actually do the titration (assuming you don't know the concentration of the solution being titrated, of course), and even then...EASTstroudsburg13 wrote:It's at the discretion of the supervisor, but I think most times chances are it'll be phenolphthalein, because that'll be what supervisors are most familiar with. They might also give you a choice of indicators, I think I had that happen to me at least once.
Would you be given the Ka's of the indicators, at least?
Or would you be presented with 3 indicators - one that changes at a low pH; another that changes at pH 7; and another that changes at a higher pH, and then go from there?
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Re: Chem Lab C
I believe in my case it was the second. However, if they do give you a choice of indicator, then they will also almost certainly give you enough information about the indicators and the substances involved for you to pick the proper one.
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Re: Chem Lab C
Shouldn't the rules read "colorimeter" instead of "calorimeter" in 4a? I don't think they're trying to imply thermodynamics/thermochemistry is part of the event...
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Re: Chem Lab C
Hi guys. I have a question regarding to equilibrium part of the event. Does it require basic knowledge of buffer, and what does the setup of "verify gas law" look like? Thx.
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