Ok. It's been a long time since chemistry class.
Firstly, I'm investigating alternative techniques for cutting paper. Think, a normal sheet of computer printer paper. Disregard for the moment any c...
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Hi. I'm just curious why did the colour of the heating element of my soldering iron change (see the picture attached). I mean I know it's because of the heating but what exactly makes the colour chang...
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http://video.google.com/videoplay?docid=-2134266654801392897&q=rubidium [http://video.google.com/videoplay?docid=-2134266654801392897&q=rubidium]>
...
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I was wondering if somebody could check these questions for me:
1. To get cupric hyroxide and cupric carbonate you coerce copper, water, carbon dioxide and oxygen reacting.
Word : copper + water...
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I was given the explanation that as you go down a group in the periodic table, the boiling points of the elements increase as the radius of the atom increase. There are more electrons and therefore th...
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This is not a homeword question but an answer to a homework question of which I do not understand the reason for. The question was what are the differences between transition metals and main group met...
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can anyone explain the precess on how to make kevlar, or ceramic plate armor
even vectran , the knife resistant material would be helpful....
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In Chlorate cell should i run 300 Amp by DC Converter 300 AMP to make Chlorate in short period?...
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I'm having troubles with this subject. Does anybody know any good online resources or have tips on the subject? Thanks....
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Any one knows the reason for the Sublimation( solid to gas). I think the attraction between the air molecules and the weaker molecular stuctured solid molecules. its and adhesion effect. the molecules...
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under what circumstances phenol forms phenolate with max yield...
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Is it a commercialy available compound?...
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Many university organic course laboratories use Liebig columns packed with glass beads. This is what I use, but I would like to know if there are better columns that can be used instead of this. I had...
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Hello,
Recently I have been pondering the change in transformation temperature of Nitinol, with various alterations. For example, annealing the wire at prolonged high temperatures,( say 600 C for ...
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I am using NaSH to make a mercaptan by refluxing a bromo pyridine in ethanol. The only thing is that my pyridine also has an amide moiety, and I am afraid of the basicity of NaSH (since S is 1 belo...
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hello,
how I can calculate the composition of a gas binary mixture of vinyl chloride and water knowing that I have only the following informations:the water is saturated by the vinyl chloridethe pres...
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In the case of oil is that it contains hundreds of different types of hydrocarbons all mixed together can all be separated by distillation.
To me is not clear why for a fractional distillation co...
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Hello,
do you know some specific application of (E)-4-hexen-1-ol?
I have already surch info. on google how to synthetise it but I didn't find what for this compound is really used.
thank you...
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We a did an experiment with Colloidal gold, in which we created gold Nano particles. Our teacher told us that we could detect that we had created nanoparticles by shining polarized light on it. We shi...
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Geetings In relation to chemical kinetics i was confused about how I can determine the characteristics/(explanation?) of a chemical reaction?
for example:
LaTeX Source CodeThe following code was u...
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On
http://en.wikipedia.org/wiki/Nanowire
This sentence.
For example, inorganic molecular nanowires (Mo6S9-xIx) have a diameter of 0.9 nm, and can be hundreds of micrometers long.
What is ...
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i am not sure if my question fits in this place.
if i have certain amounts of water and oil, 3kg and 4kg.
i mix them together, and i want to find the specific heat capacity of the mixture, accordi...
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friends i studied abt the crystalline structures of compounds but i am just failing to understand the defects of the crystal lattice so i hope some one will help me in sorting out this problem of mine...
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Anyone clever with bronsted acids and bases?
I'm pretty new in chemistry, but I'm trying to learn.
Right now I'm suppose to classify some species as either bronsted acids or bases, or even both.
...
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Hi all, I have just done a liquid seperation of B-carotene and Chlorophyll-a and put the 2 samples through a UV spectrometer.
The result that I get from the meter for B-carotene is 448nm for 1st p...
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