• ACS On Campus Rides into Houston Next Month

    Updated: 2012-02-28 23:10:57
    ACS On Campus heads to Houston, TX, on April 15, for ACS on Campus: Rice University. Sessions will range from a discussion of what the "Journal of the Future" will look like to a SciFinder Solutions Session demo with our partners at Chemical Abstracts Service. For a complete list of events and speakers at Rice University, as well as an opportunity to RSVP, visit pubs.acs.org/page/4librarians/acsoc/rice.html. You can also find video, PowerPoint presentations, and other content from previous ACS On Campus events at pubs.acs.org/r/acsoc. We look forward to seeing you on campus!

  • Online Middle School Chemistry Resource

    Updated: 2012-02-28 23:10:57
    The ACS Education Division has developed a new middle school chemistry resource, "Middle School Chemistry: Big Ideas about the Very Small." This free, six-chapter resource can serve as either a stand-alone chemistry unit or as a supplement to any middle school science curriculum. "Middle School Chemistry" uses a hands-on inquiry approach along with specially designed molecular model animations, to take students from concrete experiences to an understanding of the world of atoms and molecules. Share this free resource with middle school teachers you know.

  • Register Now for Upcoming Polymer Lecture/Lab Courses

    Updated: 2012-02-28 23:10:57
    Practical knowledge that can be applied in the lab is what sets apart ACS Short Courses from other training. Sign up for our polymer lecture/lab courses and learn everything you need to know about polymers in our Principles and Practice and Adhesives and Composites courses and put what you learn to practice in a laboratory setting. Seats are limited for these courses, so reserve yours now. Other polymer course offerings for 2011 include Polymeric Coatings and Polymer Chemistry. Visit www.ProEd.acs.org for a complete list of affordable education opportunities.

  • See You in Anaheim!

    Updated: 2012-02-28 23:10:57
    The 241st ACS National Meeting & Exposition kicks off this Sunday, March 27, in Anaheim. As always, the meeting features hundreds of technical presentations, workshops, special and social events, networking opportunities, and much more! To make the most of your time at the meeting, use the Itinerary Planner, a handy online tool for organizing your week in Anaheim. Using the Itinerary Planner, you can browse the technical program and mark technical sessions or other meeting events that you'd like to attend, then download your daily meeting schedule to your PDA or Outlook calendar.

  • Re: Mass measurement

    Updated: 2012-02-28 22:47:39
    UserInfo : February 28, 2012, 12:08:05 PM 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 Dictionary Chemical Forums Specialty Chemistry Forums Other Sciences Question Forum Mass measurement Pages : 1 Go Down previous next Print Author Topic : Mass measurement Read 15 times 0 Members and 1 Guest are viewing this topic . Caustikola Regular Member Mole Snacks : 1 0 Online Gender : Posts : 15 Mass measurement : on Today at 11:26:50 AM Hi there im thinking

  • Re: Why does it make sense to speak of oxidized or reduced COMPOUNDS?

    Updated: 2012-02-28 22:34:44
    Oxidation state (or oxidation number) doesn't have - especially in compounds - any related property that can be measured. Quite often we just assign oxidation state to central atom to make description easier, but it has nothing to do with reality. So it is perfectly correct to say that MnO4- got reduced to MnO42-.

  • Mass measurement

    Updated: 2012-02-28 22:26:50
    Hi thereim thinking of convinent methods to measure mass in my lab parce que i dont have a chemical balance.Any ideas?

  • Why does it make sense to speak of oxidized or reduced COMPOUNDS?

    Updated: 2012-02-28 22:25:17
    People often talk about compounds being oxidized or reduced. E.g., nitrite is oxidized to give nitrate. Or NAD+ is reduced to give NADH. But oxidation state applies to specific atoms within compounds, not to compounds as a whole. Is this just sloppy usage? Or are there some rules or heuristics that apply to such statements that make their meaning clear and unambiguous?

  • Why isn't NaH used for carbonyl reduction?

    Updated: 2012-02-28 21:24:19
    Rather than LiAlH4 or NaBH4, why not use NaH?

  • CLT #25: Benzene

    Updated: 2012-02-28 00:56:49
    Welcome back to CLT! This is the week my students learn about Electrophilic Aromatic Substitution See other CLT humor via Lab-Initio Enjoy!

  • O-Level Chemistry: Redox Reactions (Reduction & Oxidation) – Oxygen Atoms

    Updated: 2012-02-27 15:35:49
    REDOX reactions are reactions that involves both Reduction & Oxidation simultaneously. There are 4 ways to look at whether a substance has been oxidised or reduced, and they are: 1. Gain/Loss of Oxygen atoms 2. Gain/ Loss of Hydrogen atoms 3. Gain/Loss of Electrons 4. Increase/Decrease in Oxidation States/Numbers Today we will discuss Oxidation /...

  • CLT #24: Universal Solvent

    Updated: 2012-02-21 13:44:47
    Welcome back to CLT! No need to cite a source today. This one's an azmanam original! See other CLT humor via ME! (click for larger) Enjoy!

  • CLT #23: Valentine's Day

    Updated: 2012-02-14 14:56:04
    Welcome back to CLT! Happy Valentine's Day! See other CLT humor via SMBC Enjoy!

  • 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 [...]

  • 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 [...]

  • 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!

  • 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 [...]

  • 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!

  • O-Level Chemistry: Question on Chemical Bonding

    Updated: 2012-01-16 16:40:15
    Chemical Bonding is one of the most important fundamental topics in O-Level Chemistry (and other equivalent Basic Chemistry syllabus). It is linked to many other topics in Chemistry. However, many students are not aware of it and take them very lightly. Let’s check out a question that was emailed to me by one of the...

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