[CHM 112] Quiz 3 Solution Posted

Andrew J. Pounds pounds_aj at mercer.edu
Wed Jul 3 20:14:36 EDT 2013


On 07/03/13 19:45,  wrote:
> I looked at the solutions and I never knew they each of solution was a 
> total 100g, I knew about the first one is 100g but not the rest of 
> them. Did we have to know right away that the solution had 100g?
>
> Sent from my iPhone
>

In all three of the problems you were given *percentage compositions* by 
*mass*.  If you assume a 100 gram sample then the percentages become 
masses in grams.

This concept was seen in Burdge problem 13.16, 13.18, 13.22, and 
somewhat in 13.34.    It was also seen in the first and third additional 
problem -- so my thinking was that making such a connection on the quiz 
would not be too much of a stretch.



-- 
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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