[CHM 112] Equilibrium in Aqueous Solutions Lab

[Andrew J. Pounds]

On 07/20/2015 09:54 PM,  wrote:
> Good evening Dr. Pounds,
>
> Sorry for the inconvenience, but I have a few questions pertaining to the second lab…
>
> 1.) Since the lab instructions told us that the concentration of initial SCN is equal to the equilibrium FeSCN, do we have to show work on how that came to be or can we just write it down on the report?

This is only the case for the standards.  You still have to do the 
dilution calculation. One example will be sufficient.

>
> 2.) How do we use absorbance to determine the equilibrium concentrations?

You use your calibration plot like I demonstrated in class last Thursday 
and the build ice tables.

>
> 3.) What units do we use for absorbance?

Absorbance has no units.

>
> Thank you for your time.
>


-- 
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