Wednesday, May 5, 2010

5.5.10.

Hey guys, just thought I'd go ahead and get a blog up here.

Well, today in class Dr. B showed us how to do all of the needed calculations.

In conclusion, lab is due tomorrow as is the homework from the text book; remember to get it all done.

*NOTE* - on your lab, be sure to show calculations, sig figs, and label your work for clearer understanding; you can never use too much partial credit. Put the pre-lab and post-lab questions INTO your Lab Notebook as well.

Well, have a good night guys.
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20 comments:

  1. Alex BlandMay 5, 2010 at 4:42 PM

    Don't forget that in the lab, moles of base=moles of acid, and that to get the moles of vinegar you use the formula:
    moles=(Molarity NaOH)*(Volume NaOH)
    Molarity Acetic Acid in Venegar:
    Moles Vinegar/Liters Vinegar
    don't forget you recorded Milliliters Vinegar, so you have to conver

    ReplyDelete
  2. Will BrantleyMay 5, 2010 at 5:13 PM

    Make sure to do the problems out of the book:
    P. 901 328-341

    ReplyDelete
  3. DuklewskiMay 5, 2010 at 5:53 PM

    KHAN ACADEMY:
    Titration Round-up
    http://khanexercises.appspot.com/video?v=BBIGR0RAMtY

    ReplyDelete
  4. Will LongMay 5, 2010 at 6:07 PM

    This is a good website that has tips for working out titration problems.

    http://www.mpcfaculty.net/mark_bishop/titration_study_sheet.htm

    ReplyDelete
  5. Donnie SheaMay 5, 2010 at 6:44 PM

    Good sample problem about titration:
    http://chemistry.about.com/od/workedchemistryproblems/a/titrationexampl.htm
    Don't forget to do your lab and the homework from the book

    ReplyDelete
  6. Glennjamin AdesojiMay 5, 2010 at 6:47 PM

    Thank you Colby for putting this up, I need some more blogs. Remember to round to 3 sig figs on your caluclations for most accurate measurements

    ReplyDelete
  7. Kyle McCafferyMay 5, 2010 at 6:52 PM

    Make sure you copy down the pre- and post-lab assignments into your lab report, Dr. B won't accept it on the print out sheets

    also, make sure you show all the calculations for the tables

    ReplyDelete
  8. Chris MathewsMay 5, 2010 at 7:45 PM

    dont forget that you must use liters, not mililiters in all your calculations

    ReplyDelete
  9. Andrew ParmenterMay 5, 2010 at 7:52 PM

    make sure you use the molecular weight of KHP that is listed in the lab, rather than the one given in the book

    ReplyDelete
  10. Taylor AdkinsMay 5, 2010 at 8:18 PM

    don't forget to have 2 decimal points on all of your recorded numbers

    ReplyDelete
  11. matt johnsonMay 6, 2010 at 5:11 AM

    remember it has to be within 5%

    ReplyDelete
  12. Griff MoranMay 6, 2010 at 5:27 AM

    http://www.youtube.com/watch?v=BllRQAc76Y0

    Heres a video I found thats on titration calculations of acids and bases

    ReplyDelete
  13. Patrick SweeneyMay 6, 2010 at 5:27 AM

    Here's an interesting website about titrations.

    http://www.mpcfaculty.net/mark_bishop/titration.htm

    ReplyDelete
  14. Ryan DiazMay 6, 2010 at 5:52 AM

    heres a good site explaining calculating mass percentage.

    http://chemistry.about.com/od/workedchemistryproblems/a/percentmass.htm

    ReplyDelete
  15. Ben SmithMay 6, 2010 at 5:57 AM

    http://dl.clackamas.edu/ch105-04/molarity.htm

    Here is a good site on molarity

    ReplyDelete
  16. Justin ScheunerMay 6, 2010 at 5:58 AM

    here is a site on mass percent
    http://www.chembuddy.com/?left=concentration&right=mass-percentage

    ReplyDelete
  17. Evan HarknettMay 6, 2010 at 8:35 PM

    lab is now due Friday

    ReplyDelete
  18. Peter WetzelMay 9, 2010 at 8:38 PM

    good site on Titrations:

    www.files.chem.vt.edu/chem-ed/titration/titratn.html -

    ReplyDelete
  19. Jacob PoseyMay 12, 2010 at 4:01 PM

    http://lrs.ed.uiuc.edu/students/mihyewon/chemlab_experiment.html

    ReplyDelete
  20. joe "kitty" krebsMay 12, 2010 at 6:37 PM

    http://science.widener.edu/svb/tutorial/sigfigures.html

    refresher on sig figs (with calculator). remember study EVERYTHING for exams cause you never know

    ReplyDelete

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