Use LeChatelier’s principle to predict the effect of removing nitrogen?
442831
Based on LeChatelier's principle, removing Nitrogen (N2) from the above equation would cause the equilibrium to shift towards the left.
367815
Try finding the standard reduction potential for Cu and NO first then use those poteintial rxn equ to form the above full reaction afterwhich simply add or substract the poteinital u find to get E for the above reaction. \n\nSince E is proportional to the rate constate, u can use the above concentration as well as partial pressure to calculate the rate constant and hence E. Taking care that rate constant is the concentration/partial pressure of the reactant over the product!
642291
http://natres.psu.ac.th/Link/SoilCongress/bdd/symp9/1375-t.pdf
821342
THe VdW equation is P= nRT/(V-nb) - a(n/V)^2, just plug and chug.  But dont forget to switch your T into Kalvin
747027
It'd be basic speaking qualitatively. NH3 is a base so any amount in water would make the solution basic.
804468
You need to look up the entropy for all compounds, multiply by the entropy by the stochiometric coefficients (e.g. 4 for NH3, 3 for O2). Then subtract the left side from the right side.\n\nVery simple actually, once you find the data.
812302
You might just use the formula: \nEntropy of the reaction  = \n(sum of the entropy of products) - (sum of the entropy of reactants)\nIt's as simple as that :)\nThanks.
617450
Some molecules absorb visible light, e.g. due to conjugation and pi to pi antibonding transitions, with the highest intensity at a particular wavelength.  One can prepare standard solutions, with accurately devised known concentrations, the measured intensities of these solutions are correlated with these standard solutions, covering a particular dynamic range.  Assuming Beer's Law, the plot will resemble a linear curve, and a least fit regression line and its equation can be obtained; also by correcting for the blank if this is has not bee accounted for by the spectrometer.  The unknown pure solution, or a matrix derived alternative method if the solution is not pure that there are significant impurities in the unknown solution, will also be measured at this wavelength and it's intensity, often the y value, will be plugged into the regression equation to estimate the concentration.
980281
Go to google or wikipidia and type in nitrogen regulators and tons of available info will pop up.....word....take care and good luck
39266
I was able to find the following citation in a database called AGRICOLA, created by the National Agricultural Library:\n\nTitle:  Total nitrogen determination in plant material by means of the indophenol-blue method.\nAuthor:  Novozamsky, I.\nOther Author(s): Eck, R. van.\nSchouwenburg, J.C. van.\nWalinga, I.\nSource Info: Netherlands journal of agricultural science. Neth J Agric Sci 1974, 22 (1)\np. 3-5.\n\nIf you happen to live near Beltsville, MD you can go to the National Agricultural Library, request the journal and copy said article.\n\nIf you do not, you can make a request through your local library.  If you are not in the U.S., they will send a copy of the article to some libraries in another country.  If you are in the U.S., you can make the request through your public library.\n\nYou can also see whether there is a library closer to you that has this journal by looking through something called Worldcat.  If the link works correctly, you search for this journal and then enter your zip code to see libraries in your area that may have it.\nhttp://www.worldcatlibraries.org/wcpa/top3mset/54df6814ac864cc4.html\n\nIf the link does not work, your local library should be able to get this information for you.
648708
I know this! I did a problem like this a while ago! It's an exponential equation. It can be used to predict exponential increases or decreases, like bacteria or double/triple/quadrupled information.
640855
Fixation. Ammonification. Nitrification. Denitrification\n\nFixation-taking fairly inert N2 gas and converting it to, for example ammonia,-  this is done generally through nitrogen-fixing bacteria\n\nThe ammonification, in which ammonia (NH3) is converted to ammonium ion (NH4+)\n\nNitrification, in which the ammonium ion is converted to NO3 or NO4 and either used as an energy source or used to produce amino acids and other organic compounds\n\nDenitrification- reduction of nitrogen back to the inorganic N2 form-usually through bacterial respiration
956678
Wow, fun search -- but I think I got it!!\n\nhttp://sugarbeet.ucdavis.edu/SBPM/Nutrients/nitrogen.jpg\n\nHope that helps!
193517
You don't provide enough data to determine this.  The gas law PV=nRT has variables you need to define.
612277
A. Condensation. One might say D. but this would be wrong because the vapour has first to condense into tiny droplets (in clouds) which then clump together to form rain or snow (precipitation).\n\nNote that the other answers are 'blinds'. Nitrogen fixation has nothing to do with the water cycle. Recycling refers to re-using waste material. They are put there to test whether you know absolutely nothing, have heard some words about it, understand a little or have a good grasp of the subject.\n\nIf the question were marked out of 2, I would give 2 marks to A., 1 mark to D., maybe half a mark to C. if I felt the rest of the answers in the paper showed promise and no marks to B.\n\nWhen you are doing tests, it very often helps to ask, "Why are they asking this question?", "What piece of knowledge are they testing?" and "Why these particular options?"
811688
I would have to guess that it involves the neutralization reaction of more than 2 substances.\n\nJust a guess
994673
I am not sure of the final answer you are looking for.  If you are looking for the number of molecules transferred after a certain time t, the answer is simply n=-DAt(dc/dz).  This of course assumes that dc/dz remains relatively constant.  If not you will need a dc/dz as a function of t.