Exp 14 post-lab data entry

[robert zellmer]

This is a reminder there is post-lab data entry for exp 14 that must
be completed by the report due date.  Enter the data for *YOUR
*compound only.  Do *NOT* enter the data for any other compound.
Check to make sure you are entering the correct data.  Once it is
submitted that is the data which is graded.  We don't reset the data
if you make a mistake.

My advice is to get all your calculations done (use Excel).  Check
your numbers  to make sure everything is okay (you need to do
sample calc. anyway).  Then go on line and do the post-lab.  If
you've calculated everything correctly it should be a fairly simple
straightforward matter of typing your numbers in from your Excel
file or report sheet.

Also, remember there are two boiling points.   You find the normal
  b.p. (VP of 760.0 mm Hg) for all three compounds in the CRC.
You also measured the b.p. for your compound on that particular day
in lab at the prevailing atmospheric pressure in the lab which you
read from the barometer (not likely to be 760.0 mm Hg).  Make sure
you read the stuff I've sent and on my web page about s.f. for
Ps from eqn 6 and how that translates to s.f. in the ln(Ps).  You don't
use eqn 6 for the boiling points.

If you didn't save my e-mails you can find them on my class web page.
You should have done this before the pre-lab.

This program is the same as the one you used for exp 5 (you used
same link for the exp 14 pre-lab).  You can find the link on Carmen,
my web page and the syllabus.

You must use *Firefox*.  It is the most robust one in terms of how it
works with these programs.  I'm sure it has it's own quirks but
the programs were tested pretty thoroughly using Firefox.  I know
certain errors are caught when using Firefox which aren't caught
in other browsers.  For instance, accidentally leaving a numeric
field blank will be caught by Firefox and it will give you the
opportunity to go back and fix it.  Chrome on the other hand will
treat a blank numeric field as a zero and blindly continue on.
Of course this will be a problem for you.

Dr. Zellmer
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