[CHM 112] CORRECTED CONCENTRATIONS FOR KINETICS LAB

[Andrew J. Pounds]

I just talked to the stockroom -- there was an error in a value that 
they reported to me this morning.  Here are the CORRECT CONCENTRATIONS 
that were on each of the stock solutions...


\documentclass{article} \usepackage[utf8x]{inputenc} \usepackage{mhchem} 
\pagestyle{empty} \begin{document} \ce{Na2S2O3} \end{document} 0.020 M

\documentclass{article} \usepackage[utf8x]{inputenc} \usepackage{mhchem} 
\pagestyle{empty} \begin{document} \ce{KI} \end{document} 0.30 
M                    <-----  This is different than what was reported 
earlier

\documentclass{article} \usepackage[utf8x]{inputenc} \usepackage{mhchem} 
\pagestyle{empty} \begin{document} \ce{H2O2} \end{document} 0.2054 M


Please use these in your calculations.   If you have questions -- just ask.


-------- Original Message --------
Subject: 	Re: [CHM 112] Lab Question
Date: 	Mon, 17 Feb 2014 13:00:36 -0500
From: 	Andrew J. Pounds <POUNDS_AJ at mercer.edu>
Reply-To: 	Andrew J. Pounds <POUNDS_AJ at mercer.edu>
To: 	pounds at theochem.mercer.edu <pounds at theochem.mercer.edu>




The concentrations written on the three stock solutions last Thursday were:

\documentclass{article} \usepackage[utf8x]{inputenc} \usepackage{mhchem} 
\pagestyle{empty} \begin{document} \ce{Na2S2O3} \end{document}      0.020 M

\documentclass{article} \usepackage[utf8x]{inputenc} \usepackage{mhchem} 
\pagestyle{empty} \begin{document} \ce{KI} \end{document} 0.030 M

\documentclass{article} \usepackage[utf8x]{inputenc} \usepackage{mhchem} 
\pagestyle{empty} \begin{document} \ce{H2O2} \end{document} 0.2054 M


What is imperative, however, is that in your report for you put the 
DILUTED concentrations (what the concentrations are in each of the flasks).




On 02/17/14 10:21, wrote:
>
> Hello Dr. Pounds,
>
> I was talking to my lab partner, and she told me that we needed the 
> initial concentrations (that we written on the jugs for the KI and the 
> Na2S2O3). All I have written is what was listed in the lab, but I do 
> not have what was on the jugs. The only one I have from the lab is the 
> concentration for H2O2. What should we do?
>
>

-- 
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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