Dear Friends, I hope you all are fine.I want ask a question about the stability of benzene.The method that the chemistry teacher used was by the hydrogenation...
... stability of benzene.The method that the chemistry teacher used was by the hydrogenation of ethene and benzene. ... 300 or above moles/kj of enegy while...
hi friends can anyone help me about separation gas method . specially CO2 & O2 Plz reply regards ... Now you can have a huge leap forward in email: get the new...
... fot inerting the tanks. The principl which this generator is based on to separate nitrogen from theo oxygen of the air es the law of diffusion (Graham...
Buddylove, here's your long answer: 1. Generally this comparison is made by looking at heats of formation. I have not seen it stated in this manner before....
If you wanted to remove CO2 from O2, you could wash it with alkaline solution. Alternately, To obtain the CO2, run the gas into the bottom of a packed column,...
Hi Vanjie, To determine the detection limit, you would dilute the sample (usually by orders of 10) until you don't see a response on your detector (or you get...
Some ebooks on surfactants and detergents have been recently uploaded to rapidshare.com and mihd.net (mostly) by members of www.todoquimica.net , who have...
http://www.dupont.com/zonyl/pdf/genbrochure.pdf i hope this helps....some cationic sufactants here... john ... uploaded to rapidshare.com and mihd.net (mostly)...
Hi dear friends I want Hexa Methylen Di Amin production flochart please.i will be grateful if you help me. Thanks. Send instant messages to your online friends...
SiF4 is not ionic. Rather, the Si-F bonds are polar covalent, with slight (-)-charges on F's and slight (+)-charge on Si. The whole compound is nonpolar,...
... is ... A polar molecule has a finite dipole moment. A nonpolar molecule has a zero dipole moment. I assume that SiF4 has a tetrahedral configuration. It...
Thank you for writing back and telling me. ... ____________________________________________________________________________________ Be a PS3 game guru. Get...
Flourine is added to drinking water to make teeth somewhat stronger. Chlorine is added for cleaning purposes. I also believe that too much chlorine is toxic...
... Bone tissue, like teeth, has a calcium apatite structure consisting of Ca, P, O and H. It is my understandng that the fluoride reacts with the free...
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hi all chemists please help me on the topic of solubility of salt.in my lab i found some type of salts which are not soluble in water <also in hot water> and...
It's possible that your salt is BaSO4. To solubilize BaSO4, mix a small amount of the white powder with powdered charcoal. Put the mixed solids in the bottom...
It's possible that your salt is silver chloride, AgCl. To solubilize AgCl, add NH4OH [NH3(aq)]. If it dissolves, add HCl until pH < 7. Appearance of a new...
Hi everyone, According to proficiency test, I have difficult to determine detection limit (DL) in spectrofotometre, however the ICH [international conference...
Hi everyone, I'm really having trouble figuring out the balanced equations for the following reactions. Any help at all with this would be great! FeSCN2+(aq) +...
... Are you sure that the formulas of the iron compound are correct. It is my understanding that the SCN- is a thiocyanate ion (or isothiocyanate ion?). I...
hi everybody, i am in a great confusion after hearing the news of using formalin in our food products in bangladesh.formalin is one kind of aldihyde which is...
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