[CHM 112] Quiz 2- question

[Andrew J. Pounds]

On 06/30/13 14:02,  wrote:
>
> Dr. Pounds,
>
> On quiz #2, Question 1.b (partial pressure) You found the mole 
> fraction based on volumes.. can you explain that a little more for me 
> please, I am not exactly sure how you found that value to be 0.209476..
>
> Thanks,
>
>

Based on Avogadro's Law (look at lecture slide 15 from Chapter 11) the 
volume of a gas is proportional to the number of gas molecules (or 
moles).  Based on that fact, I could simply look at the volume 
percentage for Oxygen (20.9476) to come up with the mole fraction of 
Oxygen in the mixture.  Converted to a fraction that is 0.209476.



-- 
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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