This is the first time I've posted to a forum.  Hope "Research" was the right category.

I'm teaching a jr./sr. level Inorganic course using Miessler and Tarr.  I got a question from a student about hydrogen peroxide, H2O2 that I couldn't answer.  It's in  every textbook at  having C2 symmetry, but you'd expect (from a VSEPR picture) that it would be planar.  Apparently, it's not.  

Does anyone happen to know the reason why ... any good textbook discussion of this that you know of?

Thanks!

Sophia Hayes

Washington University

Graphene is ultra-thin, uncommonly powerful, and heat and electricity conduct through it with less resistance than any substance that exists. The discovery of graphene earned the $1.4 million 2010 Nobel Prize in Physics for two Russian physicists conducting analysis in England. Graphene's unique qualities have captivated scientists across the globe who are seeking quantum leaps in technology that can impact life on Earth in profound ways.

Graphene: Scotch tape found it

Hi there,

 I would like to start a thread on computer programs that people for research.  Please include what you use and why, and why you use it over any other options. Maybe people can learn about some options that are out there that they weren't aware of.  Lets see where this goes.

I'll start:

or, o-N,N-dimethyl-aniline, or the dihydrochloride salt, or the sulfate, I don't care.

CAS: N,N-Dimethyl-o-phenylenediamine dihydrochloride, 62654-07-3

2-Amino-N,N-dimethylaniline    2836-03-5
N,N-Dimethyl-o-phenylenediamine    2836-03-5

I will buy you a Snickers bar if you happen to have this chemical in your stockroom and would be willing to send it to me.  This chemical used to be commerically available and I can not find it ANYWHERE anymore.  I would love 2-5 g.  Help?

Adam

I need one of these, but budget is limited and we don't have glassblowing capabilities here...

http://en.wikipedia.org/wiki/File:X-ray_crystals_-_slow_liquid_diffusion_-_H_Tube.png

Thanks!

I have two related questions about analysis.

1) What is the acceptable range? I was brought up on + 0.4%.