Chem Lab C

[Jim_R]

Discussion for Chemistry Lab C

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[XXGeneration]

About what level of chemistry is expected in Chem Lab? High school? AP?

[starpug]

AP Chem is probably advisable. That is not to say you can only have Honors Chem and study yourself and still do well.

[XXGeneration]

How closely related are periodicity and electrochemistry? I can't think of a direct way to connect them like last year's topic, aqueous solutions.

[haverstall]

How closely related are periodicity and electrochemistry? I can't think of a direct way to connect them like last year's topic, aqueous solutions.

Just thinking off the top of my head, there has to be a few periodic trends that work with electrochem. For example, one trend is that if you move outward from the center of the periodic table, those elements are more likely to be used in redox equations. Also, I'm assuming electron affinity and ionization energy could come into play also.

I guess we'll have to see when the first tests come out!

[EastStroudsburg13]

I'm pretty interested as to what lab stations are to be suggested for periodicity. To me, it seems mostly a theoretical thing. However, reduction potentials are periodic, as haverstall states. Metals are more likely to be oxidized, and nonmetals are more likely to be reduced.

[haverstall]

Seeing as we already have a competition over with (Cyfalls, I believe), does anyone have any information about what types of labs could we see? Specifically related to periodicity?

[nadroj]

Can anyone point me to where I can buy lab aprons and goggles that fit the requirements for this event? Also, will the same aprons and goggles fit the bill for forensics?

[haverstall]

Can anyone point me to where I can buy lab aprons and goggles that fit the requirements for this event? Also, will the same aprons and goggles fit the bill for forensics?

This won't directly answer your question, but does a teacher at your school have these materials? They should be pretty standard for a chemistry classroom.

At our school, we just practice with the school materials, and at competition, our coach brings all the safety stuff. I don't know where you could purchase these for your own though.

[icyfire]

Hey so since this forum has been kinda not very active...

In terms of Periodicity, I want to study the exceptions to the rules.
Ex. First Ionization energy, increases from left to right, decrease down group. However there are some elements that dont fit this trend, such as the trend from 2s2 to 2p1, those two elements dont follow this general "rule"

Anyone have any good sources/sites that explains these exeptions?