Thursday, October 24, 2013

Holy Moly, Batman...

Thinking about our class->>>I would like you to go over the worksheets on unit conversions that we did in class: the pencil in miles, the paper clip in tons, etc.   Finish what you didn't complete in class and NEATLY, very neatly, write out the equation as it is supposed to be done, with the units clearly expressed, and no shortcuts.  [If grams are in the numerator, then put grams in the denominator of the following conversion/fraction...
]. Then think about the answer, does it make sense?  If your pencil is 32,000 miles long, or your paper clip is more than a ton, my guess is you made a mistake.  If you would like to print a new copy, go to page 9 here: http://misterguch.brinkster.net/17.pdf  (Unit Conversion Lab)  Answers are provided.  Please turn this in on Monday, neatly, so I can grade it.

T'S AN IONIC CONTEST!   More naming ionic compounds, but here's the twist, time how long it takes you to complete page 1 only, just the naming part. [start by making a cheat sheet in the margins.]  Leave a comment with your score below.  Then finish up the worksheet; you also have to figure molar mass.  See textbook chapter 6.4 (page 165) for instructions, and you only need to figure the molar mass for the even numbered 1-20.  But to be clear, do the ionic naming both pages.  Are you getting good?  Tickets for participating in the contest; if you can beat my doubled-time, I'll give out a prize. :}  http://misterguch.brinkster.net/WKS001_023_749153.pdf  (answers provided.)

Video: World of Chemistry:  The Mole   http://www.learner.org/vod/vod_window.html?pid=803
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13 comments:

  1. Veronique, the science geekOctober 24, 2013 at 9:51 PM

    So my time is 3 minutes 22 seconds, but I got 5 partially wrong, so add 5 seconds for each mistake, that's 3 minutes 47 seconds. Doubled, that's 7 minutes and 34 seconds. Can you beat that!?!

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  2. Veronique, the science geekOctober 24, 2013 at 9:51 PM

    You gotta watch out for those Roman numerals!

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  3. UnknownOctober 25, 2013 at 3:27 PM

    4:45

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  4. UnknownOctober 25, 2013 at 4:23 PM

    Um... 3/10 of the molar mass calculations in the answer sheets are wrong...

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  5. Veronique, the science geekOctober 25, 2013 at 4:38 PM

    # 1 should be 106.0 g and #10 should be 150.2 g. And the other wrong one is...? Good work, Danny.

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  6. AveryOctober 25, 2013 at 7:23 PM

    5:26

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  7. AveryOctober 25, 2013 at 8:18 PM

    #17?

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  8. AveryOctober 25, 2013 at 10:10 PM

    #22 is wrong on the formula, phosphide is P.

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  9. AveryOctober 25, 2013 at 10:13 PM

    #25 is wrong, it should be Ca3(PO4)2, not Ca3(PO4)3.

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  10. UnknownOctober 26, 2013 at 12:25 PM

    So basically what happened is that the chemistry work sheet doesn't know the difference between ide, ite, and ate.

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  11. Jesse CoulonOctober 26, 2013 at 12:30 PM

    Mrs. Harmon for the Unit Conversion Lab, I'm not sure that I have the proper instruments to complete the two last labs I haven't already done. Station 4 and Station 3 is what I have not completed.

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  12. Jesse CoulonOctober 26, 2013 at 2:10 PM

    Also, I got 7:21. Lame, I know.

    ReplyDelete
  13. Veronique, the science geekOctober 26, 2013 at 5:33 PM

    not lame, prize-winning, actually. Also, just make up a reasonable value for 3 and 4, and plug that in.

    ReplyDelete

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