[CHM 112] Burdge

[Andrew J. Pounds]

On 07/07/13 11:34, wrote:
> In chapter 14 problem 118, I don't understand how you got each number; 
> I understand why you had to convert each time but what numbers did you 
> use to keep converting?

So in the first conversion I went from cm^3 /molecules s to molecules 
s/cm^3 by taking the inverse of the number.

In the second step I converted the cm^3 in the denominator to L (which 
is 1000 cm^3 ) by multiplying by 1000.

To convert to moles in the third  step I divided by Avogadro's number.

In the last step I took the inverse of this number to put me back it the 
required units.



By the way, I looked back at my solution and apparently forgot to carry 
the seconds in to the numerator when I went to the second step.  Once it 
got into the numerator it would have been there for the third and fourth 
steps.  It reappeared in the denominator of the last step when I took 
the inverse.


-- 
Andrew J. Pounds, Ph.D.  (pounds_aj at mercer.edu)
Professor of Chemistry and Computer Science
Mercer University,  Macon, GA 31207   (478) 301-5627
http://faculty.mercer.edu/pounds_aj

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