Saturday, September 19, 2009

Conversion Answers

1. a. 3.7X10^-4 moles Pd
b.150 moles Fe
c. .040 moles Ta
d. 5.38X10^-5 moles Sb
e. 41.1 moles Ba
f. 3.51X10^-6 moles Mo
2. a. 52.10 g. Cr
b. 1.5X10^4 g. Al
c.8.23X10^-7 g. Ne
d. 300 g. Ti
e. 1.1 g. Xe
f. 2.28X10^5 g Li
3. a. 1.02X10 ^25 atoms Ge
b. 3.700X10^23 atoms Cu
c.1.82X10^24 atoms Sn
d. 1.2X10^30 atoms C
e. 1.1X10^14 atoms K
f. 1.943X10^14 atoms Zr
4. a.10.00 moles Co
b. .176 moles W
c.4.995X10^-5 moles Ag
d. 1.6X10^5 moles Pu
e. 7.66X10^-7 moles Rn
f. 1X10^-11 moles Ce.
5. a.2.5X10^-19 atoms Au
b.5.10X10^22 atoms Mo
c.4.96X10^20 atoms Am
d.3.011X10^26 atoms Ne
e. 2.03X10^18 atoms Bi
f. 9.4X10^16 atoms U
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12 comments:

  1. Matt FarrellSeptember 19, 2009 at 7:14 PM

    This is good practice for conversions:

    http://river.vansd.org/14544/solids_liquids/molefrac.html

    ReplyDelete
  2. Donnie SheaSeptember 19, 2009 at 10:14 PM

    A few practice problems for converting moles to grams and such: http://www.fordhamprep.org/gcurran/sho/sho/convert/molews1.htm

    ReplyDelete
  3. Jim AlrutzSeptember 20, 2009 at 6:54 AM

    http://academic.rcc.edu/freitas/Worksheets2a/14GramsToMolesToMolecules.pdf

    Here's several example problems with a worksheet on the last page.

    ReplyDelete
  4. Chris MathewsSeptember 20, 2009 at 9:20 AM

    http://dl.clackamas.edu/ch104-03/mole1.htm

    good website for better understanding of the concept of moles and how to convert them to number of elements

    ReplyDelete
  5. (The) David RaySeptember 20, 2009 at 10:23 AM

    Here's two websites for practicing converting.

    http://www.chemteam.info/Mole/Moles-to-Grams.html

    http://www.fordhamprep.org/gcurran/sho/sho/convert/molecalc.htm

    ReplyDelete
  6. Matt OriansSeptember 20, 2009 at 12:48 PM

    http://misterguch.brinkster.net/molecalculations.html

    this is a good website for more help with converting things

    ReplyDelete
  7. Alex BlandSeptember 20, 2009 at 1:28 PM

    http://www.docstoc.com/docs/2786573/Mass-Mole-Conversion-Worksheet

    Good worksheet for mass-mole conversions.

    ReplyDelete
  8. Patrick BloseSeptember 20, 2009 at 2:42 PM

    http://www.fordhamprep.org/gcurran/sho/sho/convert/molecalc.htm

    This website has sample problems for converting moles to mass

    ReplyDelete
  9. DuklewskiSeptember 20, 2009 at 7:06 PM

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

    practice problems

    ReplyDelete
  10. matt johnsonSeptember 20, 2009 at 7:30 PM

    Good practice problems at http://www.chemteam.info/mole/moles-to-grams.HTML

    ReplyDelete
  11. Ben SmithSeptember 21, 2009 at 4:11 PM

    http://santasusana.org/pakelly/G%20Chemistry/mole_conversions.htm

    good site on explaining conversions

    ReplyDelete
  12. Charlie FisherSeptember 23, 2009 at 5:55 AM

    This helps to explain what Dr. B meant when she said light does and doesn't have mass.
    http://van.physics.illinois.edu/qa/listing.php?id=14123

    ReplyDelete

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