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As always, before attempting the pre-lab you should read the
Discussion<br>
section and review the calculations. Write the procedure so you
have some<br>
idea where the numbers are coming from. Watching the video at home<br>
before writing the procedure will help. It will give you better
idea of what's<br>
going on so the procedure makes sense. The procedure MUST be
written<br>
in your own words in an outline form similar to the example in the
manual<br>
and on the 1220 Lab server (there's another example at a <a
href="https://cbc-wb01x.chemistry.ohio-state.edu/%7Erzellmer/chem1220/lab/notebook_proc_1220.pdf">link
</a>on my class<br>
web page). Pay attention to the equations and the examples in the
manual<br>
since the calculations you'll be doing are very similar.<br>
<br>
The pre-lab essentially consists of two parts. The first part
starts with<br>
a video, which you need to watch all the way through (including the<br>
credits) or you will have have points deducted. Then there is a
series<br>
of questions dealing with the discussion and procedure in the manual<br>
and the video. <br>
<br>
Below this part is the data-entry part of the pre-lab. You'll be
given<br>
numbers similar to what you'll obtain in the actual experiment. You
will<br>
then do the appropriate calculations and enter the numbers (make
sure<br>
you have the correct sig. fig.). That's pretty much it. <br>
<br>
There is an <font color="#ff0000">INSTRUCTIONS</font> button in a
red box toward the upper-left of<br>
the page. Pay attention to what it's telling you to do in terms of
units, how<br>
to enter the numbers, etc. If submitted correctly, the program will
display<br>
a summary page with all your data and the correct numbers displayed
and<br>
send you an e-mail. If you don't get these two things something may
have<br>
gone wrong and you should try again. If it did work it won't let
you do it<br>
again.<br>
<br>
<b>I sent</b><b> details about this in a previous e-mail about the
on-line pre-labs<br>
and data entry.</b><br>
<br>
The link for the pre-lab is on Carmen and my web page (Laboratory
link)<br>
so if the following doesn't seem to work from your e-mail you can
find it <br>
somewhere. <br>
<br>
<a href="https://uglabs.cbc.osu.edu/1220"><b>https://uglabs.cbc.osu.edu/1220</b></a><br>
<br>
It is due when you walk into lab for exp 2. Of course since it's <br>
on line it means it has to be done before you get to lab. <br>
<br>
The pre-lab is timed (60 minutes). You need to do it in one
sitting. When<br>
you don't we can't guarantee what will happen. If you go beyond 60
minutes<br>
it could time out on you and it will not submit correctly or refresh
due to<br>
limits on the server. Read the directions. <br>
<br>
Remember, <b>you get only one attempt. </b> <br>
<br>
Dr. Zellmer
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