Chem Lab C
-
theproblemsolver
- Member
- Posts: 4
- Joined: Thu Mar 11, 2010 4:12 am
- Division: C
- State: MN
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
Masterhat, if you knew it was first order then you already knew the rate law so you did no have to determine it, or am understanding wrong?
-
masterhat
- Exalted Member
- Posts: 44
- Joined: Sun Feb 10, 2008 7:53 am
- Division: Grad
- State: IL
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
No, pseudo-first order allows you to determine the rate by doing the initial concentration of the limiting reagent / time. Then you can plug this back in for the initial rate to determine the appropriate rate constant and exponents.theproblemsolver wrote:Masterhat, if you knew it was first order then you already knew the rate law so you did no have to determine it, or am understanding wrong?
-
peoneill
- Member
- Posts: 37
- Joined: Thu Apr 14, 2005 12:24 pm
- Division: Grad
- State: IN
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
I've gotten this exact strategy (often with "Go IU!" or "We love Indiana!" or "IFaythe wrote: Lolololol i did INCREDIBLE at chem lab at our invitational! (I'm being sarcastic) We drew pictures of elk and at the top we wrote that we like the judge's beard and they're our best friends. Lol. The funny thing is we didn't get last. Our team ended up getting 3rd over all which is cool though. And there were a lot of really smart teams there.
Chemistry!") on a handful of chem lab exams but never in other events - and when I ran designer genes I definitely had a few teams that could do virtually nothing, but were far less excited about it. My theory: goggles make people feel good.-
peoneill
- Member
- Posts: 37
- Joined: Thu Apr 14, 2005 12:24 pm
- Division: Grad
- State: IN
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
Chem lab was AWESOME at Indiana this year. People did so well!!! I was really floored. 
-
sisomg11
- Member
- Posts: 23
- Joined: Wed Feb 17, 2010 6:46 pm
- Division: C
- State: OH
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
Now that your event supervision is over, can you share with us some of your ideas for possible labs that you described above as difficult?
2007(B):Solar System, Tower Building
2008(C):Food Chemistry, Rocks and Minerals, Fermi Questions, Disease Detectives (as a backup in case of conflicts)
2009:Environmental Chemistry, Forensics, Astronomy, TPS (as backup)
2010:Chem Lab, Environmental Chemistry, Forensics, Astronomy, Picture This
2008(C):Food Chemistry, Rocks and Minerals, Fermi Questions, Disease Detectives (as a backup in case of conflicts)
2009:Environmental Chemistry, Forensics, Astronomy, TPS (as backup)
2010:Chem Lab, Environmental Chemistry, Forensics, Astronomy, Picture This
-
binary010101
- Member
- Posts: 406
- Joined: Thu Apr 19, 2007 12:51 pm
- Division: Grad
- State: PA
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
If there is an equation involving reactants/products in both the gas and ionic (aqueous) phase, how would the equilibrium expression be written?
...NOT Communist.Dual-Booting Windows 7 and Ubuntu 9.10
THE GAME.
"Mentat, solve thyself." ~ Dune
I follow the Path of the Beam.
-
starpug
- Admin Emeritus
- Posts: 932
- Joined: Sat Apr 05, 2008 6:51 pm
- Division: Grad
- State: ME
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
Eh, you may need to plug stuff into the solubility equation then the equilibrium equation.binary010101 wrote:If there is an equation involving reactants/products in both the gas and ionic (aqueous) phase, how would the equilibrium expression be written?
Get your facts first, then you can distort them as you please. - Mark Twain
-
quizbowl
- Member
- Posts: 1044
- Joined: Sat Apr 10, 2010 3:48 pm
- Division: Grad
- State: NY
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
so is next year still kinetics and aqueous solutions?
2010: 5th in NYS
2011: 4th in NYS
2012: 3rd in NYS
2011: 4th in NYS
2012: 3rd in NYS
<quizbowl> ey kid ya want some shortbread
<EASTstroudsburg13> I don't know why, but I just can't bring myself to delete this post.
-
starpug
- Admin Emeritus
- Posts: 932
- Joined: Sat Apr 05, 2008 6:51 pm
- Division: Grad
- State: ME
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
My bet is it will be, it was only in its first year this year. Barring some massive problems we don't know about, it will be the same next year.quizbowl13 wrote:so is next year still kinetics and aqueous solutions?
Get your facts first, then you can distort them as you please. - Mark Twain
-
3nv1r0nm3ntal ch3m
- Member
- Posts: 87
- Joined: Wed Jun 23, 2010 4:59 pm
- Division: C
- State: VA
- Has thanked: 0
- Been thanked: 0
Re: Chem Lab C
Starpug, I would like to congratulate you and the rest of your team on going to nationals 15 years in a row! My school has only made it to nationals once. Good job!