Chem Lab C

[Jim_R]

Discussion for Chemistry Lab C

Chem Lab Wiki
2010 Lab Event Thread

[tmanneo]

Anyone have any idea what the new topic is going to be?

[starpug]

Probably the same as last year, it was Kinetics and Solutions first year

[tmanneo]

Aww, I was hoping for acids and bases again. Guess I have to break out my spectrophotometer again, haha

[dickyjones]

Chem Lab's topic generally changes every year. I think atomic theory/bonding/states hasn't been in for a while (like 5 years) so maybe that, but I'm not positive. But Physics Lab used to change every year, and now it's been energy for like 3 years in a row, so anything could happen.

[tmanneo]

Wow, I'd really like atomic theory and all that. It would also make for some interesting labs. I'm excited for chem lab this year

[salcedam]

I'm thinking it's oxidation/reduction reactions?

[starpug]

I'm thinking it's oxidation/reduction reactions?

It is

[tmanneo]

Yep, haha. They kept aqueous solutions and added redox.

I'm gonna have to brush up on my redox labs. Didn't do too many in AP Chem last year because we were rushing towards the end.

[Lieficheep]

Yep, haha. They kept aqueous solutions and added redox.

I'm gonna have to brush up on my redox labs. Didn't do too many in AP Chem last year because we were rushing towards the end.

sounds like fun

[JMD]

This is actually my first year doing Scio, but I've done some intense Chem studying over the summer, so I though doing Chem Lab as one of my events would be well-fitted, but would anyone recommend the reference and training resources recommended by the rules manual (e.g. the CD Rev), sorry I'm not exactly too sure on how to prepare because Science Olympiad hasn't started yet at my school. Redox reactions don't sound too bad, I've gotten used to them, but aqueous solutions sound a bit difficult because of the different dissociation properties (i.e. common ion effect) and other colligative/non-colligative properties, though some of the things look pretty easy like determining concentration of solute and molar mass by freezing-point depression.

Wow, I'd really like atomic theory and all that. It would also make for some interesting labs. I'm excited for chem lab this year

Wouldn't labs for atomic theory be a bit difficult to make, though it would be interesting indeed.

[2win]

It's redox reactions and solutions this year...

But do we need to know equivalents and normality? Or just molality and molarity?

[JMD]

But do we need to know equivalents and normality? Or just molality and molarity?

The rules didn't mention either of them in particular, but it did say that "conversions between concentration units may be required for state and national levels." So I guess it would be a good idea to know the basic conversions and their units and be familiar with the difference between the two and their relation to molarity/molality.

[2win]

Ohhh, okay, thanks!

[lllazar]

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?