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Discussion for Chem Lab C.

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2013 Thread (Periodicity/Equilibrium)
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2015 Thread (Kinetics/Stoichiometry)
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Chem Lab Test Exchange 2016

Anyone know any labs pertaining to gas laws or kinetics??

karan_hooda wrote:Anyone know any labs pertaining to gas laws or kinetics??

A lot of teacher guides are on the internet, so if you do a search for gas law labs or kinetics labs, you'll get a lot of results. Here's a sample of one I found: http://www.flinnsci.com/media/960405/ap_chem_3A.pdf. There are definitely a lot more available, more than I can list here.

I'd check two places in particular:
1. AP chemistry required laboratories for the relevant units
2. college general chemistry laboratory syllabi or procedures
As noted, there is a lot out there. I have a list that my team compiled, so it shouldn't take you too long to make.

A lab for the general chemistry series at our university is determining the molar mass of a low-boiling liquid: http://faculty.washington.edu/callis/Ch ... .abst.html or https://depts.washington.edu/chem/cours ... rMass.html. And a warning about finding and doing labs off the internet: often knowing the student procedure isn't enough for you to safely handle or dispose of some chemicals, so it's always a good idea to get a chemistry teacher involved if you decide to do practice labs.

I noticed the topics reallt vary from year to year... What are some constants? Also, what laws are useful to know for the lab.

aenakhan wrote:I noticed the topics reallt vary from year to year... What are some constants? Also, what laws are useful to know for the lab.

I've found a really helpful website that could be dealt wit chem. formulas and laws, http://chemistry.about.com/od/generalch ... rylaws.htm

Does anyone know if this lab would cover every single law specifically or would it just be broad, by only taking a few laws to choose from?
I am currently enrolled in a chemistry class, by studying for this event I would learn the things I already know, but my question is if it will expand my chemistry knowledge such as to an AP level?

Not sure I understand your first question, but generally, a lab will probably test for knowledge of some specific laws that will be necessary in calculations, but I think the point of the lab is not to test for this type of material (although you should definitely still know the laws..), but rather to see which teams can most accurately carry out (and know) lab procedures and/or follow directions. Section 4.b. of the rules states some possible lab topics, but they probably will not be limited to that.

If you're not in AP Chemistry right now or have not taken it, then studying for Chem Lab this year will introduce you to kinetics which I believe is not covered until then. But of course, there is a lot of information out there about gases and kinetics that is not taught in a typical chemistry class at school so there is always more to learn, especially with the addition of greenhouse gases this year.

On that note, I was wondering what kind of questions you guys are expecting for the greenhouse gas and climate change aspect of the test? The rules are sort of broad and it seems like it may be the part of the test that separates the top teams besides speed/length of test (and lab), addressing complaints from previous years of Chem Lab being too easy overall.

Does anyone know of any study guides/practice tests/etc for the gases part? I see plenty of stuff about kinetics...but not much about the gas part, probably because it's new.

Edited to add- SOMEONE please write a 2016 test, even if it's simple, just so I know what to expect!

How lenient are the graders usually on sig figs?