Where can I find a website that has a table of delta S not (entropy) values for common chemicals?
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I have a really good, comprehensive table of the Enthalpies, Entropies and Gibb's free energy that I use, I wish I could give it to you, but I forgot where I got it, I only have a hard copy.\n\nYou may be able to search around the internet and find some good tables, but they wont likely be very comprehensive.\n\nOne good source would be the back appendix of a college level chemistry books.  These books usually have a pretty good table of enthalpy/entropy in the back, plus lots more info.  You can pick one up cheap at a used book store I am sure since it doesnt really matter how old the book is.
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http://chemlab.pc.maricopa.edu/periodic/periodic.html\n\nhttp://www.swansontec.com/selement.htm
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http://www.columbia.edu/itc/chemistry/chem-c2507/navbar/chemhist.html
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You could check theses sites:\n\nhttp://www.liv.ac.uk/Chemistry/Links/reforganic.html\n\nhttp://matematicas.udea.edu.co/~carlopez/index2a.html\n\nhttp://www.anachem.umu.se/cgi-bin/jumpstation.exe?Chromatography\n\nhttp://www.organicworldwide.net/
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The closest thing you will find are sites like chemifinder and chemical catalog sites such as aldrich.
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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.
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If you are looking for properties of some specific chemical then search for MSDS (Material Safety Dada Sheet) for that particular chemical in Google or Yahoo search engines.\nHere, I am giving you a list of websites which can give you general information on symbols. There will be slight variation in the depth of descriptive material depending on site to site.\nYou can copy and paste following links in your browser's address line:\n(1) www.geocities.com/david_charles_curran/safety\n(2) http://en.wikipedia.org/wiki/Hazard_symbol\n(3) http://www.hse.gov.uk/chip/phrases.htm\n(4) http://www.chem.utoronto.ca/healthsafety/guide/symbols.htm
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well, it's hard to draw here. but when i want to find a chem structure, i look at http://www.chemfinder.com you can type naproxen sodium into the search box, and it draws out the structural formula and gives you the properties of the molecule. VERY COOL!
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http://www.shodor.org/unchem/basic/stoic/index.html\nhttp://chemed.chem.purdue.edu/genchem/topicreview/bp/ch3/massmolframe.html\nhttp://www.physics.ohio-state.edu/~dvandom/Edu/Stoichiometry.GIF
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http://www.chem4kids.com
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International Directory of Chemical Engineering URLs\nhttp://www.ciw.uni-karlsruhe.de/chem-eng.html
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Delta S = DeltaHvap/T  = 38 / 338   =0.112 KJ/mol = 112 J/mole
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The niosh pocket guide is free and has a lot of info but not LD50\n\nyou can do a MSDS search for the compound and that will give you the ld50, just be sure that the compound is in a similar product.
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I think you are looking for this: \n\nhttp://www.cms-chemicals.com/
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www.chemistry.arizona.com\nwww.wikipediaencyclopedia.co\nhttp://www.echemistryhelp.com/\nhttp://chemfinder.cambridgesoft.com/\nhttp://www.chemguide.co.uk/\n This are some of the website
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http://www.iupac.org/index_to.html\nIs a pretty handy resource.\nhttp://www.che.ufl.edu/www-che/\nI seem to recall being very useful as well.\nLet me know if these help.
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try:\nhttp://lb.chemie.uni-hamburg.de/static/data/50_zzk46n8n.html