Chemistry - February 2007

2007-02-22 05:09:31 · 8 answers · asked by Anonymous

2007-02-22 05:07:51 · 8 answers · asked by edrine 1

We did a lab and we had to predict whether
1-butanol (primary) , 2-butanol (secondary), and 2-methyl-2-propanol (tertiary) undergo halogenation. We mixed those 3 alcohols with concentrated HCl (aq)...

Now, I just need to understand this..
For the primary I said it does go under halogenation because it produces 1-chlorobutane + water

For the secondary I said it also goes under halogenation because it produces 2-chlorobutane + water

For the tertiary I said it doesn't go under halogenation because there is no Hydrogen available unless you break the carbon-carbon binding.

Am I right? Any explanations/suggestions? Are the products correct? Chemistry experts help please =)

Also, when those alcohols were mixed with the HCl (aq), what did it mean when cloudiness appeared...did it mean that if cloudiness appeared it went under halogenation or that if cloudiness appeared it didn't go under halogenation?

2007-02-22 05:03:50 · 1 answers · asked by A 2

compounds like hydrous copper (II) sulfate vs. anyhydrous copper (II) sulfate. why is one hydrated, why is one not hydrated.

2007-02-22 04:59:26 · 4 answers · asked by herroworld 1

and what does the "like" refer to? I am so confused!

2007-02-22 04:47:48 · 1 answers · asked by Samantha Jo 3

I have a question about the Aufbau principle. I was thinking first you fill up all the energy level 1 orbitals, then the energy level 2, then the energy level 3, etc., but that wasn't working out too well for me. Is THIS the order in which they will be filled?

1s
2s
2p
3s
3p
4s
3d
4p
5s
4d
5p
6s
4f
5d
6p
7s
5f
6d
7p

If so, how do you write the electron configuration? For example, I know that for nickel, it's 1s(^2)2s(^2)2p(^6)3s(^2)3p(^6)3d(^8)4s(^2)... but why wouldn't the 4s(^2) be written before the 3d(^8) since that orbital was "filled" first?

Lastly, I thought that all orbitals in a principal energy level must be filled with 1 electron, to give it a parallel spin, before you pair the electrons. If that is so, than how come, in phosphorus for example, 3s gets a pair of electrons, whereas 3d doesn't even have one? Am I getting mixed up and it's that all "electron slots" in an atomic orbit must have 1 electron before pairing them?
Please help and please explain well! THANKS

2007-02-22 04:45:55 · 4 answers · asked by Happy 3

2007-02-22 04:41:49 · 1 answers · asked by bccrazybear 1

Name the electron shells.....and thier order.....cant remember?

2007-02-22 04:34:40 · 2 answers · asked by Diamond in the Rough 6

using Le Chatlier's principle

2007-02-22 04:33:20 · 1 answers · asked by Anonymous

2007-02-22 04:29:15 · 3 answers · asked by edrine 1

A sample of gaseous PCl5 was introduced into an evacuated flask so that the pressure of pure PCl5 would be 0.5800 atm at 526 K.
But, PCl5 decomposes to gaseous PCl3 and Cl2.
At equilibrium the TOTAL pressure in the flask was measured at 0.9744 atm.


PCl5(g) ↔ PCl3(g) + Cl2(g)

Base your calculations on the reaction as written above


Enter a numeric answer only.

2007-02-22 04:16:55 · 1 answers · asked by Anonymous

Most of the mirrors are painted silver on the back and red on top of it.

Why is this done?

2007-02-22 04:15:00 · 1 answers · asked by pvrao 2

2007-02-22 04:08:16 · 4 answers · asked by Anonymous

2007-02-22 03:57:18 · 1 answers · asked by Anonymous

2007-02-22 03:55:03 · 3 answers · asked by supernumbernine 1

2007-02-22 03:53:49 · 1 answers · asked by Anonymous

i am building a rocket for school and i want to launch it using viniger and bakingpowder but i don't know how much of which to use. anyone got any idea?? or a better one???? plz help!! thx

2007-02-22 03:49:16 · 2 answers · asked by reby2791 2

2007-02-22 03:48:36 · 2 answers · asked by saul g 1

2007-02-22 03:34:15 · 7 answers · asked by chris 1

The coffee bean and the cocoa bean are closely related, so I can't understand why if it's possible to decafinate one it's not possible to decafinate the other - anyone know why this is?

2007-02-22 03:07:22 · 7 answers · asked by purplerain 2

2007-02-22 03:01:45 · 1 answers · asked by jeannette l 1

2007-02-22 02:56:01 · 11 answers · asked by horrified 2

I need to know about the inhibition of ADH ethanol metabolism by acetaldehyde and I've looked everywhere for articles- Scirus, ebsco, biomed central, pubmed central, web of science etc etc and i can't find anything even remotely relevant! Does anyone know of any decent articles, or where i can find any? Cheers.

2007-02-22 02:40:33 · 2 answers · asked by MiniMed 3

2007-02-22 02:34:45 · 7 answers · asked by Jay 1

this is from organic chemistry

2007-02-22 02:30:30 · 3 answers · asked by jkool 1

2007-02-22 02:18:05 · 3 answers · asked by Joel F 1

I ask the question because recently whenever i have a glass of water on my desk, it's been getting full of bubbles after sitting there for around 5 minutes. Anyone?

2007-02-22 02:11:46 · 5 answers · asked by Anonymous

There are __________ total valence electrons associated with the thiocyanate ion (SCN1-).

anybody know the answer and why?

2007-02-22 01:48:57 · 1 answers · asked by Horsebackrider 2

2007-02-22 01:41:48 · 7 answers · asked by Anonymous

2007-02-22 01:20:48 · 3 answers · asked by cheese toast 3