Recent content by JGK

  1. J

    Where Can I Find Affordable and High-Quality Chemical Vendors in the US?

    VWR (also covers Merck, JT Baker & EMD range) Fisher (also covers Acros) Sigma Aldrich (also covers Fluka, Reidel de Haan) in Canada Anachemia
  2. J

    Combining H2 and O - What Happens?

    this was an experiment they showed me back in high school. A clean paint can was used: 2 holes were cut, one into the base and one into the lid. Hydrogen from a hydrogen generator was piped in via the base until the can was considered full (the H2 supply was shut-off then removed). the...
  3. J

    What happens when two electrons in a shell collide?

    I would doubt that they would ever collide, surely the negative charge density of the electrons would repulse and deflect each other preventing collisions.
  4. J

    I need book or web for analysis ?

    Are you intending to characterise the drug compound or do you want to validate analytical methods to detect and quantify them? Are they existing drugs? these may be covered by pharmacopoeial methods For new validations I would consult ICH.org and their Q2(r1) validation document For...
  5. J

    What is the most accurate method for measuring 6 mL of water?

    It will also depend on the classification of the volumetric glassware and the temperature etc Class A glassware is produced to tighter (volumetric) controls than class B glassware. these
  6. J

    Criminology - Find a Stainer to Identify Thieves

    From Boichem classes and accidental exposure you may want to look at somthing like this http://en.wikipedia.org/wiki/Ninhydrin" stains on direct contact and takes time to fade
  7. J

    How can i be a clinical chemist?

    I studied biochemistry in the UK as an undergraduate and you could "major" in either Biotechnology, cliniical biochemistry or toxicology. I chose Toxicology The clinical Biochemistry major was tailored for work in the health services. Ironically, my first job out of university was...
  8. J

    Question about my Chemistry textbook

    From what is written there , I would say it is designed for those with little or no previous chemistry, so you should be OK. However, a failure to becone a brilliant chemist may not be the fault of the book
  9. J

    How can i make my chemistryteacher think im smart

    You could also try the old fashioned way, do the reading , do the work and ask pertinent questions in class. Trying to impress without the means to back it up may work at school but once out of academia most people (especially those in the science community) see right through it. I have...
  10. J

    What is the Study of Chemical Transformation through Organic Lifeforms Called?

    Could fall under the Biotechnology umbrella
  11. J

    Where Can I Find the Best Book for Analyzing Organic and Biochemistry?

    Biochemistry, 5th Ed. by Lubert Stryer (Author), Jeremy M. Berg (Author), John L. Tymoczko (Author) Organic Chemistry (6th Edition) by Robert T. Morrison (Author), Robert N. Boyd (Author) Instrumental Methods of Analysis by Hobarth Willard (Author), Lynne Merritt (Author), John Dean...
  12. J

    Can we predict a complex molecule's shape?

    Yes, it's done all the time with computer modelling in Molecular chemistry/Biochemistry and Toxicology to predict molecular interractions with receptors on cells, enzyme active sites etc.. Even at Uni in the 80s, in biochemistry we were watching videos showing the construction of a 3d model...
  13. J

    Methane from Carbon Dioxide and Hydrogen

    That wasn't what I said, you are posing the scenario to replace coal, oil and gasoline as power sources which only form part of the 5% carbon load from "industrial processess" and not 95% as you claim. Also, the extrction of CO2, from whichever source to produce the methane may require more...
  14. J

    Water pipes and frigid weather

    I provided you with the equation to prove this... If a mass of water freezes the ice volume is 109.6% bigger In a confined environment like a pipe this expansion will still occur and possibly : split the pipe, break joints etc << post edited slightly by berkeman >>
  15. J

    Methane from Carbon Dioxide and Hydrogen

    Plus given the stats that "industrial processes" account for say only 5% of the atmospheric carbon load. Wouldn't it be better focussing our attention to dealing with the 95% side of the equation?
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