• Re: Photons/Quantum/daily life examples

    Updated: 2010-07-31 15:35:46
    QuoteI wasn't trying to refute you. I know you were not, no worries . 

  • Acid dissolution + Caffeine. Please Help

    Updated: 2010-07-31 15:16:04
    We have a CH3COOH dissolution [0.1M], 10ml of dissolution. We add 10mg of caffeine C8H10N4O2.CH3COOH + H20 <=> CH3COO-   H3O+    a= 1.8x10-5Caffeine + H20 <=> CaffeineH+    H-    kb= 4.0x10-11Which is the [CaffeineH+] and the ph?Thank you

  • Re: Brine Electrolysis question

    Updated: 2010-07-31 14:43:43
    UserInfo : July 31, 2010, 06:42:35 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 Calendar Login Register Search Chemical Forums ChemicalForums , Google Chemistry-Blog Art from molecular models Chemistry-Blog.com Google Sponsors Content ChemBuddy ChemFeeds Chemical Forums Chemistry Blog Chem Reddit : Resources General Chem Word Dict . Periodic Table Chemical Forums Chemistry Forums for Students High School Chemistry Forum Moderator : Donaldson Tan Brine Electrolysis question Pages : 1 Go Down previous next Print Author Topic : Brine Electrolysis question Read 138 times 0 Members and 1 Guest are viewing this topic .

  • Re: hydrogen cyanide

    Updated: 2010-07-31 14:21:55
    Hydrogen Cyanide, I doubt it. It may be a reaction to formaldehyde which is sometimes used in insulation.If it was HCN you would smell almonds.

  • hydrogen cyanide

    Updated: 2010-07-31 14:09:53
    Does this sound like hydrogen cyanide? When I entered my unit recently, I experienced a strong atmospheric pressure. I then felt like I had been kicked in the chest, my head started tingling and I had body tremors. When I got outside I found I had small white spots on my skin that looked like powder. When I rubbed this off, there were red spots on my skin like it had been burned. A urine test did revealed my exposure level to cyanide was 10 times higher than normal. If it was hydrogen cyanide, was the hydrogen placed in water or in acid?

  • Dangerous Chemistry Sets

    Updated: 2010-07-26 23:23:02
    From: SMBC – Fear Itself ~Mitch

  • Cargo cult science in the Gulf, news at 11

    Updated: 2010-07-21 06:34:32
    The Gulf oil tragedy has already shown the ignorance of some reporters about chemistry. However, a Mobile TV station and their chemist has taken it to new heights when they blamed the oil spill for (likely) bad glassware. WKRG is a local TV news station in Mobile, Alabama; they sent intrepid reporter Jessica Taloney to collect [...]

  • Common Student Difficulties in Organic Chemistry

    Updated: 2010-07-13 15:51:43
    While cleaning out my newly assigned “war room” (the setting where I’ll strategize on how best to torture students this fall), I came across some fairly interesting documents that were buried in far corners of crowded file cabinets.  They’re nothing personal or discriminating (sorry TMZ), but I saw them as material I could use in [...]

  • Chemists Purposely Withholding Information

    Updated: 2010-07-09 16:57:23
    I once saw an undergraduate setting up a reflux in my lab, and I could tell immediately it wasn’t going to work. The undergraduate didn’t take enough precautions to ensure that the liquid wouldn’t leak out from the joint connecting the round bottom flask and the condenser. I debated whether I should say anything, but [...]

  • Your Academic Lineage

    Updated: 2010-07-05 16:45:30
    Over dinner the other night, my uncle and I started comparing and contrasting our academic experiences.  He’s a fascinating person who earned a bachelor’s degree in computer science in the late 1970’s. After discussing the finer points of Moore’s Law, and how he agonized over purchasing a 20 MB hard drive in the 1980’s for $400, [...]

  • The most bracing (and sad) chemical sentence you will read today

    Updated: 2010-06-29 04:45:39
    “I will roar argon into chlorine, xenon into fluorine, all the noble gases into reactive ones… My lament will terrify even the stars.” – Jessica Stern, Denial: A Memoir of Terror From Dwight Gardner’s review in the New York Times. Dr. Stern is an expert on terrorism; she believes her interest in terror stems from a [...]

  • Art On A Chip

    Updated: 2010-06-27 06:30:59
    Albert Folch from Lab on a Chip released a cool artsy project this past Friday that the journal has been working on. Defined bluntly, the project is a collaborative flickr account to share the pictures of your science.  The general theme is miniaturization, and of course dyed water on chips. The images already stored there are appealing [...]

Current Feed Items | Previous Months Items

Jun 2010 | May 2010 | Apr 2010 | Mar 2010 | Feb 2010 | Jan 2010