[CHM 111] SIG FIGS

[Andrew J. Pounds]

Class -- also make sure that you watch the sig figs on your writeup.  
If you massed out 1.0000 grams on the analytical balance then you have 5
sig figs. 

If you know the molar mass of KHP to five sig figs then you can
determine the moles of KHP to 5 sig figs.

BUT when you determine the molarity of NaOH you have less sig figs in
the volume of NaOH, so that affects the sig figs in your final molarity.

Also pay careful attention to the sig figs in your ALUM lab!

Like I mentioned before -- I took a quick peek at some of the work
already submitted and found some pretty big errors.  Please check all
these things carefully.  Both lab reports are due by 11 pm tonight.

-- 
Andrew J. Pounds, Ph.D.  (pounds_aj at mercer.edu)
Professor of Chemistry and Computer Science
Director of the Computational Science Program
Mercer University,  Macon, GA 31207   (478) 301-5627

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