Chemistry

How can I make FeCl2??

I am an engineering student at a Chicago university. I was simply wondering whether I would be able to purchase basic chemicals such as HCl, Cl2, various organic substances, etc, from companies that specialize in supplying small quantities of basic chemicals. On the website of the most prominent of these companies, at least in N. America, Fisher Scientific, it seems that they mostly sell to companies and schools and whatnot. So, would I be able to get these basic reagents without having a company address etc? Would they ask me what I need them for? The same question goes for things such as basic flasks and pipettes and more expensive tools such as reflux condensers a…

Hi, I am interested in getting a quantitative result (mathematical figure) on the maximum "holding capacity" of water. i.e. If I had 1 L of H2O, whats the maximum concentration of ions can exist before a precipitate starts to form. And I am not talking about individual Ksp's of salts. Lets say you dissolve the maximum amount of NaCl in the 1L of H2O, then the max amount of KF, then LiI.. etc.. What is the limit of water in terms of the concentration of ions it can hold ? Thanks.. P.S. This is NOT a homework problem.. I'm just curious.

Not sure if this is a legitimate question on these forums My fiancee is studying chemical and process engineering in Poland and will move here next summer, after we marry and she graduates She will then need to look for her first job, but there are few places in Dorset where she will be able to work, so it looks like we will have to move Her main interest is in polymers and brewing beer, but I am trying to push her towards pharmaceuticals or cosmetics, because I think she will always have a job making face creams for women (and men!), but (and don't tell her this) also she can then brew beer at home as a hobby Not even knowing anything about her studies, …

Does anyone know any exact information about signal lamp oil as used by railroads up to the 1940s or a bit later? It appears to have been less flammable and more viscous than kerosene. I have this information - Density 35 degrees Baume or 0.848 sg, flash point (don't know whether open or closed cup) 280F, fire point 315F and pour point 30F. Is there a modern product that has similar properties? Crooked Mick

Hi friends, last week I have had visited a dietitian. Because recently I have gained a little weight around 30lbs in 9 months. I know this can make me look ugly. And after checkup the dietitian suggest me to do alternate cardio with a few days of weights/pilates and bumping up the intensity of cardio every two weeks will do just as much as 1hr of cardio every day. And she also told me that building muscle will help me burn fat and I may weigh 135 pounds but will look like 110.” Now here comes the problem I am kind a lazy kind of guy. So how do I motivate my self?

http://www.iht.com/articles/ap/2007/10/10/europe/EU-GEN-Sweden-Nobel-Chemistry-Citation.php Here are some exerpts from the citation from the Nobel committee, in awarding Gerhard Ertl the prize: ==quote from the Swedes== The Nobel Prize in Chemistry for 2007 is awarded for groundbreaking studies in surface chemistry. This science is important for the chemical industry and can help us to understand such varied processes as why iron rusts, how fuel cells function and how the catalysts in our cars work. Chemical reactions on catalytic surfaces play a vital role in many industrial operations, such as the production of artificial fertilizers. Surface chemistry ca…

Hi there I only know a bit of the basic's of chemistry and would like some help please. Im trying to make some potassium nitrate (Kno3), just wondering if it can be extracted from sulphate of potash, which says it has 1. Potassium as Sulphate 41.5% and 2.Sulphur as Sulphate 17% This would be a good source of potassium am i right?? Now where could i get some nitrate but must be from somewhere around the house? Aswell what would be the best method to extract the kno3 at the end using the sulphate of potash and the unknown nitrate source?? Thanks yer thanks for the help ppl. gee you ppl no alot about science dont you. NOW CAN ANY1 SHARE SOME HELP…

What happens when you put these things together and what's the equation for them and what type of reactions are they? 1. Water and ammonium chloride 2. Hydrogen peroxide and magnesium dioxide 3. Calcium chloride and Sodium Carbonate 4. Hydrochloric acid and a piece of magnesium ribbon. Thank You so much.

I'm new here and i'm kind of stupid so please be nice to me lol. Anyways, here's my question: Is Cl2 a covalent compound or a molecular compound? What's the difference between them? Thanks

Why do some compounds kill/slow down germs and bacteria? How/why do they?

What happens to the heat when you have an exothermic reaction? Why are there endo and exothermic reactions? What happens when you have and endo or exothermic reaction? If you had a big enough endothermic reaction, could you vaporize the liquid that had the endothermic reaction? (My guess here is no because you need extra energy to turn it from a liquid to a gas, the temperature doesn't increase).

What side effect(s) would happen to a person if s/he drinks a bottle of Pine-Sol? You see, there was a rumor about a girl who tried to kill herself by drinking the probably 3/4 bottle. Answering the question and/or providing your own opinion would be greatly appreciated.

How are the rate equation made or determined. Can any one leave some good links which describes rate equations in detail thnx

So i have a unknown chemical compound that is a white powder, very soluble in water (polar). But it doesn't conduct electricity in solution at all so i can probably exclude it's ionic. Also, when you heat it up in a bunsenburner it doesn't melt or combust, it stays pretty much the same, a stable powder. pH seemed kinda neutral in solution. Does anybody have any idea how i can further test for which compound it is? First it seemed like a carbohydrate but since it doesn't melt or combust after prolonged heating i doubt it. Any ideas of what it might be or any new tests i can make to help identify it?

I was in a chemistry competition today where people were given certain ingredients and instructed to form a moisturizer from them. We were told we could use some or all of the following... - Water - Cetiol CC - Isopropylmyristat - Emulgade SE-PF - Lanette MY The sample I submitted after a few trials with different combinations of ingredients and the order of adding was about 40g water, 2g cetiol, 2g lanette, and about 5g emulgade. It was a bit too oily I think, and I couldn't really tell how well it thickened as it was still fairly warm from heating. Just wanted to know if anyone had any ideas on what the right formulation should have been, because i'm curio…

There is a product out on the market use for a home Oxygen Bar (Like the O2 bars in hollywood), but with this product you mix Chemical A with Chemical B in water, and it produces large amounts of 95% pure oxygen. Can someone help me figure out what chemical A and B are. Thanks!

Hey everyone, I just bought a small can of lycopodium clavatum (Club Moss) at a health store (I can't believe people actually ingest this stuff voluntarily) with the intend of refilling my "Dragon's Breath" squirt bottle I got from a magic shop (where you shoot it out over a flame), but the stuff in the can doesn't flow well out of the squirt bottle I was trying to refill - it's more like flour and just clumps together (electric chanrges and all). Any ideas on if I can add something to still make use of this stuff, or do I need to search around more? Help! Aurora

Some synthetics esters smell of Pineapple,Apple & Orange.. Question... Research the names of the esters that produce these smells.. HELP..?!..Please xx

I would like to bounce an idea off my fellow chemists. I am going to stay simple and avoid extrapolating, until this basic relationship is settled. Premise: In molecular water, the hydrogen are at higher potential than the oxygen. Observations and logic for support: If you look at a molecule such as HCl, this has a dipole moment, where the H is positive and the Cl is negative. Inspite of this having an equal and opposite dipole charge, this is considered an acid, because the H side carries the highest potential. The reason; Cl is highly electronegative and gains stability by completing its octet to become Cl-. By forming the octet, the Cl- creates orbitial s…

Hi everyone, I've just got a quick question which I hope people don't mind me asking! Regarding atoms that have a stronger bond between the protons and the electrons the bigger the atomic number is - can anyone tell me why? I would have assumed that due to the fact that while there may be more atoms giving it a higher charge, an atom with a higher atomic number will also have more electrons to bond with and therefore it's increased charge due to it's high atomic umber will be used up on more electrons, than an atom with a smaller atomic number which while it does have a smaller charge, also has fewer electrons to bond with. Can anyone help? thanks in advan…

OKay so i'm kind of stupid and I don't understand where the 2 comes from. How do you get a 2? If nickel is a transitional metal and has 2 different charges of 2 or 3 how do you know that it's a 2 in NiCl2 if Chlorine has a charge of 1? Shouldn't it be NiCl ? I'm really confused and i hope that someone can explain this to me. Hopefully that this has made some sense.

i was wondering where can i get liquid oxygen and liquid nytrogen:rolleyes:

I'm really confused about something. I don't understand why the atomic radius decreases left to right on the periodic table if the atom doesn't get bigger. Can someone please explain this to me. So i was told that the atomic radius is the distance from the nucleus to the outer shell but since everything is the same when you go from left to right i don't get it.

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