Chem Lab C

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Chem Lab C

Postby bernard » June 16th, 2016, 10:00 pm

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Re: Chem Lab C

Postby ScienceOlympian » October 2nd, 2016, 1:10 pm

For people who have done this event before, would you say that it goes above an AP Chemistry/Zumdahl level?
I don't know if it's worth it to read a Physical Chem book for Gases/Thermodynamics if the actual test won't be above my Zumdahl textbook. Would it be more efficient to practice the questions in Zumdahl or read Atkins Physical Chem for more information?

i'm probably going to read atkins anyway for chemistry olympiad but that would be after invitationals.
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Re: Chem Lab C

Postby slowpoke » October 2nd, 2016, 1:37 pm

ScienceOlympian wrote:For people who have done this event before, would you say that it goes above an AP Chemistry/Zumdahl level?
I don't know if it's worth it to read a Physical Chem book for Gases/Thermodynamics if the actual test won't be above my Zumdahl textbook. Would it be more efficient to practice the questions in Zumdahl or read Atkins Physical Chem for more information?

i'm probably going to read atkins anyway for chemistry olympiad but that would be after invitationals.


I would say it rarely ever goes above Zumdahl level if at all. The only instances I have ever seen it go above would be at MIT and the regionals I went to 2 years ago (test written by chem camper).
However, I would think reading a physical chem book is overkill anyway unless you are trying to do well at IChO or something.
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Re: Chem Lab C

Postby _deltaV » October 11th, 2016, 10:25 am

I have to disagree. Our regional exam was honors Chem level, while the Cypress Falls invitational we went to last year had a few questions well above AP level, both with gases and kinetics. Plan for studying AP level but also learn more complicated concepts because they will show up. The general rule of thumb with most tests we see and write is 25% stupid easy, 50% moderately difficult, and 25% impossible. That one question could be the difference between placing and not
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Re: Chem Lab C

Postby ic3kreem » October 21st, 2016, 3:03 pm

Does anyone know of any other resources to study besides an AP Chem textbook like Zumdahl/Atkins?

Also what are some possible labs for this year?

Thanks

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Re: Chem Lab C

Postby bigrichard68 » October 25th, 2016, 5:58 am

Can someone answer ic3kreem's question? I'm also wondering but no one has replied in four days...

What's the point of this site?

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Re: Chem Lab C

Postby Unome » October 25th, 2016, 6:24 am

bigdick69 wrote:Can someone answer ic3kreem's question? I'm also wondering but no one has replied in four days...

What's the point of this site?

All of us aren't competent in every event. If you have an answer, feel free to contribute it. The site is only active if people keep it active.
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Re: Chem Lab C

Postby chalker » October 25th, 2016, 8:16 am

There are a whole bunch of resources listed on the official event page: https://www.soinc.org/chemistry_lab_c

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Re: Chem Lab C

Postby _deltaV » October 25th, 2016, 10:18 am

Some of the labs we've done:
- Reacting acetic acid and sodium bicarbonate and collecting CO2 over water to determine the mass of the bicarbonate sample
- Reacting magnesium with hydrochloric acid, and measuring the change in temperature using a calorimeter to determine heat evolved as well as how much hydrogen gas was produced
- Styrofoam cup calorimeters
- Dissolving something like ammonium chloride or a hydroxide in water and measuring the temperature

I ran a lab as practice for my team that involved reacting sodium thiosulfate and HCl and then predicting the amount of SO2 gas released by the reaction
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Re: Chem Lab C

Postby EastStroudsburg13 » October 26th, 2016, 8:31 am

ic3kreem wrote:Does anyone know of any other resources to study besides an AP Chem textbook like Zumdahl/Atkins?

An AP text should be sufficient. If you want to look into textbooks that delve deeper into this year's topics, then you can feel free, but I think for the majority of teams, an AP text is fine.
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Re: Chem Lab C

Postby ic3kreem » November 12th, 2016, 2:17 pm

Thanks for the advice everyone!

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Re: Chem Lab C

Postby migh3suns » January 29th, 2017, 11:43 am

I'm wondering about the lab activity. I've seen some references to LabPro used with TI calculators. In the competition itself, would it be a big disadvantage to not have used this combination of equipment before--say, for example the student has experience with Vernier LabQuest or LoggerPro, but not the particular graphing interface used in competition. Do they tend to make it pretty easy to walk in and operate whatever equipment is there?

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Re: Chem Lab C

Postby edenprairiesucks » February 10th, 2017, 2:03 pm

Hi everyone,

Does anyone have any other tests for practice? There's only one on the test exchange. I can upload the river falls and boyceville tests.

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Re: Chem Lab C

Postby Macgyver » February 13th, 2017, 11:11 am

Does anyone know how much Stoichiometry is needed this year?
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Re: Chem Lab C

Postby Avogadro » February 13th, 2017, 6:03 pm

Macgyver wrote:Does anyone know how much Stoichiometry is needed this year?

Just about anything with Stoich is fair game, though of course most of it will be centered around gases and thermo. Considering how big those categories are in terms of Stoich, though, I'd say that you really just need to be prepared for anything on that front.
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