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I know some of you have already done the Gatekeeper pre-lab<br>
but some have not and I'm getting questions about problems with<br>
the web site. You may have received, or may receive, some of the<br>
information from the lab supervisor.<br>
<br>
Pre-labs and the data entry can be reached via Carmen. It takes you<br>
to an external link. If Carmen is unreachable the link to the site
is in<br>
the syllabus and on my class web page (at the "Laboratory" link).<br>
<br>
Pre-labs are due before lab. Reports, post-labs and data-entry are<br>
due 1 week after completing the exp unless you're told otherwise.<br>
<b>You get only <font color="#ff0000">ONE</font> attempt for the
pre-labs and data-entry.</b><br>
Read the following beforehand.<br>
<br>
When you get to the external site and click on the link for the<br>
Pre-labs it takes you to a page with some general instructions<br>
on how to use the programs. READ it. There's also another<br>
link right above the table with the links for the pre-labs,<br>
data entry and feedback. This is "Terms and conditions of use".<br>
You need to read this. It gives some technical information (such<br>
as the best browsers to use, how to enter data, etc.). When you<br>
click on "Prelab" or "Data Entry" there will be an "Instructions"<br>
button at the upper left. Click on it and read the instructions.<br>
These are specific to the pre-lab or data-entry.<br>
<br>
When doing either here's a few other pointers: <br>
<br>
1) It's best to use <b><font color="#ff0000">FIREFOX</font></b>.
The versions we've tried of this<br>
browser don't seem to have any problems. Chrome seems to<br>
work but has it's quirks (if you leave a field blank it accepts
it<br>
as a zero). Students seem to have the <font color="#ff0000">most
problems </font>with <font color="#ff0000">Safari</font>,<br>
<font color="#ff0000">Edge </font>and <font color="#ff0000">IE</font>.<br>
<br>
While I have had it work using Firefox on my Android phone,<br>
we suggest you do <font color="#ff0000"><b>NOT </b></font>use
your phone. Some browsers<br>
on phones are not the full fledged browser.<br>
<br>
<b><font color="#ff0000">Your browser must be html5 compliant.</font></b><br>
<br>
2) Do <font color="#ff0000"><b>NOT </b></font>reload the page or
get out of the browser thinking you'll <br>
finish later. It starts over from the beginning, including the
video. <br>
<br>
3) Do it in ONE sitting, plan on not getting up to finish it later.<br>
It will time out and when you come back to it the page will
refresh<br>
with new numbers and you have to start over from the beginning.<br>
If reached via Carmen it has a time-out limit imposed by
Carmen,<br>
which seems to be 30 minutes. If reached by the direct link to
the<br>
external web site, I believe it times out in 1 hour. However,
it<br>
shouldn't take more than 20 minutes.<br>
<br>
4) It's best to use a direct ethernet connection. If using WiFi
make<br>
sure you have a strong reliable connection and do NOT change<br>
places (moving the laptop may cause it to lose connection). If
<br>
you lose internet connection the program starts over (it clears<br>
everything and you start from the beginning).<br>
<br>
5) You have to watch the video all the way through or you lose
points. <br>
This means you need to let it finish through the credits.
Don't stop<br>
it or proceed with the rest of it until it stops playing. If
for some<br>
reason you've had to <font color="#ff0000"><b>start over</b></font>
(it refreshed or wasn't accepted)<br>
you have to <font color="#ff0000"><b>re-watch the video in its
entirety</b></font>.<br>
<br>
6) Read the whole write-up for the exp and write the procedure
before <br>
attempting the pre-lab. Click on the "Instructions" button in
the pre-lab.<br>
Watch the video(s) in the pre-lab (don't just play it). If
you do this you<br>
should be able to answer all the questions for the pre-lab. <br>
<br>
7) Numbers less than 1, such as 0.11, <font color="#ff0000"><b>MUST</b>
</font>be entered with the "0" before <br>
the decimal point. It will not accept ".11". Do <font
color="#ff0000"><b>NOT</b> </font>use sci. notation<br>
unless it specifically instructs you to do so.<br>
<br>
8) Make sure there's no space (blanks) at the beginning or end. It
will not<br>
accept "0.11 " (note the space after the "1").<br>
<br>
9) Sometimes if there's a problem with something you entered in a
box<br>
(particularly for numeric values) the box will be outlined (in
red, the<br>
color could vary depending on your browser). Firefox
definitely<br>
does this, I'm not sure about other Browsers. If you position
the<br>
mouse button over the box it will give an error message such as<br>
"Please match the requested format." or "Only a number, no
units"<br>
(this one will occur even if there's no unit but you didn't
enter the<br>
number correctly, see #7 and #8 above). This is especially
true for<br>
Firefox and that's one reason we suggest you use it.<br>
<br>
10) Make sure you're satisfied with your answers. Once you hit
submit <br>
there's <font color="#ff0000"><b>NO REDO</b></font>.<br>
<br>
The program will send you a confirmation e-mail if things were
submitted<br>
properly (from <a class="moz-txt-link-abbreviated"
href="mailto:gc.labs@chemistry.ohio-state.edu">gc.labs@chemistry.ohio-state.edu</a>).
If you don't get one<br>
pretty quickly check your spam or junk folder. If not there,
it probably<br>
didn't submit properly and you should redo it. Also, if
submitted correctly<br>
the screen should refresh with your answers. The data entry
part includes<br>
the correct values to the right of yours in parentheses.
There's also a list at<br>
the bottom of what you missed. Again, if you do <b>NOT</b>
see this something<br>
went wrong. Do it AGAIN. It's a good idea to print this, take
a screen<br>
shot or generate a PDF for your records in case you have a
problem or<br>
wish to discuss something with me or the lab supervisors.<br>
<br>
11) If you have a problem please send the following:<br>
<br>
a screen shot<br>
5-digit section number for your lab<br>
day/time of lab<br>
TA name<br>
computer you're using (PC, Mac, iPad, Android, phone, etc.)<br>
operating system (e.g. Windows 7, 8, 8.1, 10, etc.)<br>
browser and version (Firefox, Chrome, Safari, Opera, etc.)<br>
<br>
12) If you do have problems please send e-mail to the
chemlabsupervisor<br>
e-mail address <a href="mailto:chemlabsupervisor@osu.edu">chemlabsupervisor@osu.edu</a>
.<br>
<br>
Dr. Zellmer
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