Hello all, There's some important (well, I think they're important) updates at JeffreyNCook.com, particularly in the area of Synthetic Life, Chemistry and...
Please take my email off your list! I didn't join this group to get sex advertising! Thank You! ... From: Jeffrey N Cook <antidyne@...> Subject: [The...
Dear Mr. Cook: Could you specify what sex advertising you received? In my experience, the group has been under siege since June 1 from a campaign called...
Dear Ms. Topper: Please excuse my directing e-mail to the wrong person. It is to you that I apologize, of course. ... get sex advertising! ... Chemistry ... ...
Hi, the answer to all three questions is H2O. 1 mole (avogadro's number of molecules) of water is 18 grams. (Oxygen RAM=16 and hydrogen=1). Thus 36g is 2...
Screening effect:generally the electrons from the outer orbit are attracted towards the nucleus but due to inner orbit electron this attraction fades. The...
depends on how much water you want to stop. Waterproofing can have a broad definition. What type of materials are you dealing with. Actual conditions will...
hai ken. i am asking about the white powder which is added to cement mix and the brown liquid that is added to conrete when its mixed.i want to know how to...
Hi to all the group members, I just joined this group today and find it very good.Here I want to put a topic to discuss on Rayon Grade Pulp and Viscose Fibre ...
im an 11th grader ,., in our school we r tackling with periodic table ; and our teacher gave us relation :- screening effect is indirectly proportional to the...
Hi, You are right in that the f-orbital will have the least effect, but then there are 14 electrons in the full f-orbital. At this point the electrons will...
I had uploaded some pdf files containing multiple choice questions in solid state which are helpfull in learning and practicing solid state chemistry. They are...
electrosis, i've been playing a H2 Generator. in the winter my water will freeze, i'm weak on my chem, so if someone would not walking me through my ?, How...
Hi everyone, I would like if a polymer side chain has to be reacted how do u take the weight of polymer for calculation as it is number of molecule Thanks...
Dear Sonali, Weight of polymer is taken on the base of average molecular weight as far as mole ration is concern. For weight by weight calculation you can take...
hi So you mean to say if the total weight of polymer is 120 and there are 12 monomers so the mol wt is calculated by120/12= 10 ... From: mukesh jani...
Hi I wanted to know the difference between HETCOR and HMQC NMR. In HMQC or HMBC we have a plot of C and H nmr. What about HETCOR? thanks sonali [Non-text...
I had uploaded some pdf files containing multiple choice questions in various topics in chemistry which are helpfull in learning and practicing chemistry by...
Hello All, I have a HP 5890 GC with a Perkin Elmer HX40 headspace unit. I have an sri333 A/D converter and I'm running the most current version of Peak simple...
No, I didnot mean that. If the average molecular weight of polymer is x and if you need 1 mole then you will have to take x gms. Generally average molecular...
hi dear i need some information about carbene and his family how we can made it when science find it and how what we can do white it. thanks [Non-text portions...
Hi, Can any one know the ignitors for wood sticks ?.Why sugar cane burning very fast comparitive than others. Sugar water can be used as ignitor ? Thanks ...
Hi, What is the detector in the GC? If you have a FID, then you should not see any peaks if you just had water in headspace vial. Lance ... an ... Peak ... ...
Hi everyone! aside from the standard chemical oxygen demand method using dichromate or permanganate, does anyone know any new method of cod analysis for high...
Hello I'm a Chemical Engineer currently developing a project for a salt manufacturing company involving the recuperation of Magnesium from the concentrated...
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