I want to know how one purchases pure elements. Like Caesium or Neon or Chlorine.
Do you need licence to purchase some elements? Or do you need to be affiliated to some sort of organization?
W...
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I was wondering, is it possible to have a gas denser than water? I once saw a video where they had 6 balloons. The first contained Helium and when released, it floated to the ceiling. The neon did ...
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I just tooned in to the end of a segment on "daily planet" about this guy who found out a way to create a plastic conductor. He says it conducts electricity as well as a metal wire and is ve...
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Chemical properties of hydrogen compounds can have vast differences depending on the state of matter that the substance is in - solid, liquid or gas. The difference in chemical properties is related t...
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An increase in the OH- in a solution would result in
an increase in alkalinity (baseness).
an increase in acidity.
a pH of 7.
a decrease in pH.
i think it would be - an increase in alk...
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My teacher can't explain it. My textbook is awful at it. So can someone explain clearly what the role of the fractionnating columns are; in the Fractional Distillation Tower....
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Is it possible to make a quantitative test for protien using biurets test - if so how would you do it? Does it involve titration?...
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hey guys, i need to make an electroconductive gel. e.g silver chloride gel!! please help me.
thnks...
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how would you know a compound is explosive...
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Generally, when you melt a salt (CaCl2 @800deg C specifically) are the ions disassociated as in a solution or is molecular vibration simply great enough to not allow the formation of intermolecular bo...
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this is a little thing i just was bouncing around my head and came up with the formula and was just wondering if it would work in anyway.
NaOH7...
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I wonder if someone can help me here. For part of my geography dissertation I'm hoping to completely dissolve some very pure limestone (~99% CaCO3) to get some microfossils out. I'll be using either a...
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Does anyone here know of a good site explaining LaTeX Source CodeThe following code was used to generate this LaTeX image:[tex]d_{xy}[/tex]LaTeX code reference [javascript:;]>');">, LaTeX Source CodeT...
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Hello everyone,
Not that I looking to experiment or anything, but anyway...correct me if I'm wrong anywhere here...please.
An associate of mine was wondering how to get rid of cat urine smell. H...
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I know that the sp3 hybrid orbitals form 109 angle, but why the angle is not 90. If the angle is 109 the repulsion is minimized or what? Show some comparations. Thank u....
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Hello,
I have been searching for sites recently on complex ion chemistry and I have found a few good hits, but sometimes it seems the authors are vague as to the actual complex formed, and which c...
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Ito Glass:
Indium-tin-oxide (ITO) coated substrates
Bare (unpatterned) indium-tin-oxide (ITO) glass (e.g. 15 ohm/sq.;25 mm x 25 mm)
Patterned indium-tin-oxide (ITO) glass (e.g. 15 ohm/sq.;25 mm x 2...
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Hi,
I noticed the topic on making rust from steel wool with vinegar and bleach.
Can anyone suggest how to form iron rust quickly, but without the chlorine production?
I am using large steel sheets ...
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Hi, i'm taking AP Chemistry right now and will be taking the Ap Chem Test on May 15. Recently i've found some Ap chemistry free response questions from 2002 to 2006 on www.Collegeboard.com; [http://ww...
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Anyone know the Ka for Phosphate Buffered Saline (pH 7.4). I have heard that it is 6.2E-8, but the formula says .008M Na2HPO4, .002M KH2PO4. Using Henderson Haselbalch, [H+] = Ka[KH2PO4]/[Na2HPO4] u...
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I have a question that I am familiar with, but there is no answer provided and about 1000 ways to make small mistakes. I was hoping someone could take a glance and see if any mistakes jump out. Any ...
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I bubbled 5% CO2 through a needle into 30 mL of PBS open to atmosphere (25C) for approximately one hour and reduced the pH from 7.40 to 6.48. I was wondering if I can find the concentration of CO2 in...
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N,N-dimethyltryptamine, what is it?
I looked up research and sites told me it was made by the pineal gland but from other sites it sounded as thou it was created from a chemical reaction caused by ...
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Hello I am in a life science calculus two class and in lieu of a final we can do a project. The problem I am having is coming up with a project. I was just wondering if any one had any good ideas for ...
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Can anyone explain how to do it in a simple way or at least provide a good website that explains it. I have no idea how to do it. Thanks....
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