• Re: c(NH4+) ions and Ka

    Updated: 2012-02-08 15:49:51
    In the 1st one I got the answer this way: calculated the c(NH3) after the mixing, c(OH-) through the KOH and used for Kb 1,8*10^-5.For the 2nd one I found an answer by the authors of the book (not much explained) and they got the answer calculating that this is not a buffer. I don't know why.

  • dissolving Cu with Cr2O7 2-

    Updated: 2012-02-08 15:33:29
    UserInfo : February 08, 2012, 05:23:02 AM Welcome , Guest Please login or register Did you miss your activation email 1 Hour 1 Day 1 Week 1 Month Forever Login with username , password and session length Forum Rules Read This Before Posting Home Help Search Login Register Search Chemical Forums ChemicalForums , Google Google Sponsors Content ChemBuddy ChemFeeds Chemical Forums Chemistry Blog Chem Reddit : Resources General Chem Word Dict . Periodic Table Chemical Forums Chemistry Forums for Students Inorganic Chemistry Forum dissolving Cu with Cr2O7 2- Pages : 1 Go Down previous next Print Author Topic : dissolving Cu with Cr2O7 2- Read 12 times 0 Members and 1 Guest are viewing this topic . mooliak Very New Member Mole Snacks : 0 0 Offline Posts : 1 dissolving Cu with Cr2O7 2- : on Today

  • Re: write a redox reaction

    Updated: 2012-02-08 15:23:51
    i'm sorry, misreplied . I apologise for the mistake

  • CLT #22: Partial Credit

    Updated: 2012-02-07 13:42:18
    Welcome back to CLT! My students have their first exam of the semester this week. MS, IR, and NMR spectroscopy. Wish them luck I have no idea what the origin of this cartoon is. It was on the office door of one of the professors at UNC where I did my Ph.D. I asked him [...]

  • Respecting liquid hydrocarbons as a natural wonder

    Updated: 2012-02-03 23:51:09
    I just had a conversation with a colleague who is somewhat mainstream in his/her thinking. The question came up as to why can’t we be energy independent.  What is taking so long with the electric cars and natural gas powered … everything? When can we break away from middle eastern petroleum? In the public sphere, [...]

  • Pinch Predicted in the Uranium Market

    Updated: 2012-02-03 18:16:16
    According to an article in Mineweb, the remaining cold war era uranium will be consumed in the next few years, leaving the nuclear industry with inadequate supply streams from mining.  Thomas Drolet of Drolet & Associates Energy Services, said that in 2010 mining produced 118 million pounds of uranium against a demand of 190 million pounds. [...]

  • Most accessed articles in January

    Updated: 2012-02-03 14:57:38
    Categories All General Chemistry Marketing OA in the Developing World Conferences Presentations Open Access Editorial Board About We want to hear from you Mail us at editorial chemistrycentral.com Search Links Our blogs BioMed Central Blog Chemistry Central Blog Open Repository Blog Open Access Central BioMed Central Chemistry Central Other links F1000 Biology F1000 Medicine ChEBI Chem DB ChemRefer ChemSpider Chemists Without Borders Experimental Data Checker IUPAC Links for Chemists Process Analytical Technology PubChem WebElements eMolecules Archive February 2012 Mon Tue Wed Thu Fri Sat Sun 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 Today Chemistry Central Blog Friday Feb 03, 2012 Most accessed articles in January Take a look at our ten most accessed

  • CLT #21: Ay! You!

    Updated: 2012-01-31 13:00:50
    Welcome back to CLT! I found this cartoon doodled on the back of a quiz I gave last week in my organic chemistry class. The artist gave me permission to scan his contribution and post it here on the blog for everyone to enjoy. Made me chuckle. Click the image for larger. See other CLT [...]

  • Return to fundamentals

    Updated: 2012-01-26 19:29:51
    As we labor away on our extractive metallurgy project, I continue to marvel at how even complex extraction schemes reduce to the application of fundamental chemistry and basic unit operations. It is crucial to have a comprehensive understanding of the composition of your ore and the fate of the components as they are exposed to [...]

  • CLT #20: Practical Joker

    Updated: 2012-01-24 13:10:39
    Welcome back to Cheap Laugh Tuesdays! More from the Far Side. (note: I don't think this is a good idea. Don't try this on your coworkers ) See other CLT humor via The Far Side Enjoy!

  • Keep China busy- buy an iPhone.

    Updated: 2012-01-24 03:14:17
    Thanks to Bill in Michigan for the link on how the US lost out on manufacturing the iPhone. The article is well worth the read. A few of us have been beating this drum for a while. Economics is not a theory of physics. It is entirely about choices people make. But to some, economics has become [...]

  • LinkedIn

    Updated: 2012-01-21 00:13:36
    Has anyone ever had a useful outcome from being on LinkedIn?

  • Organic Chemistry Extra Credit You Tube Parody Videos

    Updated: 2012-01-20 16:10:12
    Last spring, a few of my students made me an awesome parody video of Rebecca Black's Friday, "It's Lab Day." This semester, nearly half my class turned in lots of great parody videos.  Not all of them wanted to be shared publicly, but here are most of the videos my class made me!   Sunglasses [...]

  • Anti-SOPA Solidarity

    Updated: 2012-01-19 15:21:22
    In solidarity with yesterdays protest against internet censorship, my porch light remained dark last night. What is normally a shining beacon of hope in the neighborhood was last night a mute and dark void.  This pocket of frigid darkness sat in silent protest to those who would presume to stunt the billion webbed neurons of [...]

  • Cheap Laugh Tuesdays #19: How to Avoid 'Chem-Speak'

    Updated: 2012-01-17 13:53:44
    Welcome back to CLT! Back to Sidney Harris this week (last seen as the inspiration for the Fantasy Research League) See more CLT humor via Science Cartoons Plus Enjoy!

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