Chem Lab C

Re: Chem Lab C

Postby quizbowl on Sat Oct 02, 2010 5:14 pm

probably general chemistry knowledge, at least.
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Re: Chem Lab C

Postby starpug on Sat Oct 02, 2010 5:37 pm

lllazar wrote:So i know this event is focusing on Redox reactions and Aq solutions this year, but is there anything else that may show up on the test?

Acids and Bases has a lot to do with solutions so I would have some basic knowledge of Acids and Bases. Probably don't need to worry about Buffers and Acid Base equilibrium.

We had some Acids and Bases stuff on our state test last year. It was pretty much just identifying characteristics of acids.
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Re: Chem Lab C

Postby quizbowl on Sat Oct 02, 2010 5:43 pm

according to the ever sacred rules, it just seems that you must be proficient in Aqueous solutions and Redox. each accounts for 50% of the score.
also, students MUST wear long sleeve shirts
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Re: Chem Lab C

Postby 2win on Sat Oct 02, 2010 5:49 pm

looking at the test on soinc, i suppose you should know about pH, pOH, [OH-], [H+] and their relationships for acids and bases...
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Re: Chem Lab C

Postby starpug on Sat Oct 02, 2010 6:00 pm

quizbowl13 wrote:according to the ever sacred rules, it just seems that you must be proficient in Aqueous solutions and Redox. each accounts for 50% of the score.
also, students MUST wear long sleeve shirts

Ok...
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Re: Chem Lab C

Postby 2win on Sat Oct 02, 2010 6:24 pm

Oh, do we have to know about autoionization too??
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Re: Chem Lab C

Postby JMD on Sat Oct 02, 2010 7:02 pm

quizbowl13 wrote:according to the ever sacred rules, it just seems that you must be proficient in Aqueous solutions and Redox. each accounts for 50% of the score.
also, students MUST wear long sleeve shirts

Was that always a rule in the past?
2win wrote:Oh, do we have to know about autoionization too??

Maybe for general chemistry, but I don't think it's necessary for the main two topics.
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Re: Chem Lab C

Postby crazy77 on Wed Nov 10, 2010 10:12 pm

Two questions: 1. What would the actual lab portion of this event be like? What are the different things we might have to do? 2. From your prior experience at various competitions, is an AP level understanding of most of the subjects that may be covered adequate?
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Re: Chem Lab C

Postby Kokonilly on Mon Nov 15, 2010 7:30 pm

I have a question about oxidation numbers. I know that they're assigned to different chemicals and ions and such, but how can you ever remember them? I tried to memorize them and I simply couldn't. Does anyone have a mnemonic device or something similar?

ALSO: Half-reactions. I don't understand them. Please help?
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Re: Chem Lab C

Postby 2win on Tue Nov 16, 2010 4:54 pm

You don't have to remember all of them, mainly just oxygen's and hydrogen's. There's formula to figure them out... the only things you have to memorize are the rules (aka exceptions to the formula)...
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Re: Chem Lab C

Postby lyly10388 on Fri Nov 19, 2010 1:00 am

Jim_R wrote:Discussion for Chemistry Lab C

Chem Lab Wiki
2010 Lab Event Thread


Such a very amazing link!
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Re: Chem Lab C

Postby Wongman on Sat Nov 20, 2010 12:00 am

I've been out of Science Olympiad for a long time, but I would recommend pulling a book from the library (might have to use inter-library loan) called Quantitative Chemical Analysis by Harris, or a similarly leveled analytical chem book if you want to be really super in this event and to try to get into some of the subtleties.

Then again, back in the day, the topic was nuclear chemistry and just from reading the AP Chem text I had and the AP review book (probably not the best prep in hindsight), my partner and I were probably a calculator error away from medaling at NYS states.
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Re: Chem Lab C

Postby binary010101 on Wed Dec 01, 2010 8:39 pm

Wongman wrote:I've been out of Science Olympiad for a long time, but I would recommend pulling a book from the library (might have to use inter-library loan) called Quantitative Chemical Analysis by Harris, or a similarly leveled analytical chem book if you want to be really super in this event and to try to get into some of the subtleties.

Then again, back in the day, the topic was nuclear chemistry and just from reading the AP Chem text I had and the AP review book (probably not the best prep in hindsight), my partner and I were probably a calculator error away from medaling at NYS states.


It also helps to use USNCO tests. The theoretical portions for these tend to be around an order of magnitude harder than the regional/state tests.
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Re: Chem Lab C

Postby starpug on Wed Dec 01, 2010 10:08 pm

binary010101 wrote:
Wongman wrote:I've been out of Science Olympiad for a long time, but I would recommend pulling a book from the library (might have to use inter-library loan) called Quantitative Chemical Analysis by Harris, or a similarly leveled analytical chem book if you want to be really super in this event and to try to get into some of the subtleties.

Then again, back in the day, the topic was nuclear chemistry and just from reading the AP Chem text I had and the AP review book (probably not the best prep in hindsight), my partner and I were probably a calculator error away from medaling at NYS states.


It also helps to use USNCO tests. The theoretical portions for these tend to be around an order of magnitude harder than the regional/state tests.[url][/url]

You can say that again, that thing was quite the doozey. Harder then the Nats test I would say
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Re: Chem Lab C

Postby Paradox21 on Fri Feb 18, 2011 10:39 pm

Does anyone know what kind of Chemistry book would talk about Beer's Law? I have looked in 2 college level general chemistry books and neither mentions it.
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