Recent content by PeetPb

Well photons are transmitters of electromagnetic force so the radio waves are photones as well. Only difference is that human eyes cannot detect them because of their wavelength/frequency. Wikipedia says about the gamma radiation (which is about at 10^(-11)meters) that it has no lower limit on...

I was just answering your question. If you have read that much about PE you would find your answer. I'm not sure that I fully understand your next question. Are you asking about some connection between ultraviolet radiation and PE ? generally UV radiation decomposes polymers

hi, well it generally depends on the chain. If there are some super sensitive functional groups you don't have much options, you have to do some protections and such stuff. As an example , you can use conc. sulfuric acid and heat to make an alkene (depends on the carbon chain if you can use such...

I'm not quite sure but I think that no. Because to produce the alcohol you need concentrated sulfuric acid. However concentrated hot sulfuric acid is also used for elimination of alcohols. So I think that it wouldn't work because you wouldn't either make the alcohol or if you could make one in...

Hi there, I don't see how you cannot find your answer http://lmgtfy.com/?q=benzaldehyde+%2B+ethene , first link it's called polyethene and yes it is a polymer. next time try a to search a little before you start a new thread.

Hi, I've been searching for the oxidation mechanism of KMnO4 on alkanes (aryl derivatives like toluene). All I found was some web sites telling me the overall reaction and that the mechanism is either unimportant or too complicated for their purposes. I found some little notes that it has a...

I'm not sure if mathematica can export to *.exe. What you're probably looking for is a cdf file. It's a file that can be played without mathematica (it's used on wolfram demonstration project http://demonstrations.wolfram.com/"]).[/PLAIN] If you have mathematica 8.0.4 notebooks can be deployed...

Hi, I need to plot a vector field 2x,2y,0 which is the gradient of the function x^2+y^2. I need to plot it only in some interesting points (points on the paraboloid x^2+y^2). So I tried something like a=Table[{{x,y,x^2+y^2},{2x,2y,0}},{x,-2,2,0.5},{y,-2,2,0.5}] ListVectorPlot3D[a] It...

they didn't say literally that which 3 proteinogenic , but I suppose they meant that because the text before talks about the amino acids in organims ... I answered it with Asx Xle and Glx ... I know that it has pretty much nothing to do with chirality...

yes I've checked the table and the only non-chiral amino acid I found is glycine... so I;m asking what could be the other two they meant ...

hi, I've got a problem,which 3 amino acids are non-chiral ? I know there are many of them but I suppose they're only asking about those which are in organisms... I know about glycine but what are the other two ? thanks

thank you very much ... I got it finally :)

I was just wondering ... shouldn't the time depend on the amount of water that we are electrolysing or on the surface area of the electrodes ?

oh, right thanks , I somehow used the wrong constant ... so again when I plug the numbers along with the units I get t=(96485.3*2*10 C mol)/(1 mol A) the moles cancel and I'm left with C/A which should be seconds. The actual number is about 536 hours ... is this right ? it seems to be a little...

greetings I'd like you to check my calculations. The task is to calculate the time needed to produce 10 moles of hydrogen from water by electrolysis with a current of 1Amp. I first wrote the equation of the reaction that occurs on the cathode 2H2O+2e- = H2 +2OH- Then I derived the...