It's Saturday and I'm in a chemistry lab, ask me anything

[PVnRT]

I'm bored.

[Bertha Venation]

1. mixing what two chemicals will result in a

dense yellow precipitate? And what's the precipitate then called? I did this in high school once and remember the result but not the chemicals I mixed.

[DS1]

2. beer and wine?

[PVnRT]

3. I believe that it's an iron precipitate

I can't for the life of me remember the chemicals used, but it's a fairly standard qualitative analysis reaction to test for iron.

The only yellow coming to mind right now in a chemistry lab is the yellow your skin turns when you get nitric acid on it. We used to give ourselves temporary tattoos with it during high school.

[bicentennial_baby]

12. Nope...Yellow is Lead

Yellow precipitate is the positive indicator for Lead, obtained after adding Potassium Chromate to an ionic solution. :P

[PVnRT]

13. You're right

No wonder I was having difficulty justifying what I said. Lead chromate, fluffy, yellow precipitate. It's been seven years since I had Chemistry III, cut me some slack ;-)

[bicentennial_baby]

14. No problem

I'm at the beginning of my journey towards an Environmental Science degree and I had that lab last semester...Just don't ask me about molecular geometry or VSEPR and we'll be all set ;-)

[PVnRT]

15. VSEPR is your friend

Physical chemistry rules! Go thermodynamics!

[Catshrink]

16. tetrahedron, tetrahedron

nah nah....

[bicentennial_baby]

18. Noooooo!

A week and a half until next semester...I'm not touching my Chem book until then, and nightmares of paired electrons and lewis dot structures will dance in my head :P

[DemOutWest]

4. The exploding

tempature of the liquid in that liitle container marked "Highly Flammable" is what?

[PVnRT]

7. Nothing like that in here

I think the worst is probably a bottle of butanol. No fun stuff over here today.

[DS1]

5. Would you pour me a glass of Nitrogen Triodide?

:evilgrin:

[PVnRT]

8. No, but how about some nice n-butanol

Or a lovely shot of glacial acetic acid with just a smidge of n-butyl formate? :evilgrin:

[Red_Viking]

6. The only thing I remember from Chemistry...

Johnny was a chemist
But he's a chemist no more
For what he thought was H2O
Was H2SO4

:)

Sad, I know. But I was an English major; what did you expect?

:dem:

RV

[PVnRT]

9. Damn lib arts people!

:evilgrin:

Here you go, the Ideal Gas Law: PV = nRT, where
P = pressure
V = volume
n = number of moles
R = gas constant
T = temperature (absolute)

[OneTwentyoNine]

10. Where are those WMD????

[PVnRT]

11. Up in Newport, 40 miles north of where I am

You know, Newport Army Base, Newport, Indiana, where all of our wonderful VX nerve gas is. You should hear some of things my mom and other teachers nearby have heard about evacuation plans and such...

[Philosophy]

17. What does mercury taste like?

Is it as delicious as lead?

[PVnRT]

19. Chicken

It tastes like a chicken....made of mercury.

[baby_bear]

20. What year are you in?

Last night I had one of those notorious dreams people seem to have long after finally getting out of school...wherein you face a final exam and realize you haven't been to the class all quarter...YIKES!
I was in a panic until I woke up and realized I took my last final ten years ago...

I spent many, many long hours (nights and weekends included) in a biochemistry lab, extracting nasty things from trout livers...

Have a good Saturday! And remember, this too will pass!


:toast:

s_m

[PVnRT]

21. Graduate student

Going for an M.S., so I'm not really a "year" anymore.

[baby_bear]

22. That's what I suspected

Most of my lab hours were when I was getting my M.S. My major professor treated me like slave labor working in his lab, then when I started my own thesis work, there wasn't any choice but to spend night and day there. I used to skateboard around the halls late at night, much to the consternation of the occasional guard walking through.

I feel your pain!

Hang in there...

s_m

[Skittles]

23. making any good drugs, sweetie pie?

over here, dude. :7

[PVnRT]

24. No, unless formic acid gets you high...

Which it doesn't, it's pungent as hell and has almost knocked me out at least twice in the past year.

[carolstarkey]

25. What does your professor look like?

Is he cute?

[PVnRT]

26. Not really

He was born in Bulgaria, still has the accent (which can be funny at times), short, glasses...and he's married with one child. You can see him (and the rest of the faculty) here: http://www.rose-hulman.edu/che/faculty.htm. He's near the bottom.