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<tt>Quiz 3 will cover the following: Chapter 16 (16.1-16.11) and Ch
17 (17.1-17.2)</tt><tt><br>
</tt><tt><br>
</tt><tt>This is pretty much up through last Monday. It covers all
of chapter 16<br>
and the first two sections of 17.1-17.2 (common-ion problems and
buffers).<br>
<br>
</tt><tt>Rather than repeat it all here, you can find details of
what's covered on<br>
the quiz on my web page by going to the "<b><a
href="https://www.asc.ohio-state.edu/zellmer.1/chem1220/quiz/quiz_1220.htm">Quizzes</a></b>"
link at my Chem 1220<br>
class web page (not Carmen). </tt><tt><tt>It also lists which
sections from the textbook<br>
are covered and the corresponding end-of-chapter (EOC) problems
and on-line<br>
homework which you should be able to do.</tt> There's also
further descriptions<br>
of things there and links to other help files for this material
which can be<br>
found on my web pages.<br>
</tt><br>
<tt>On the quiz, if you need to use an ICE table, you must show the
work<br>
and the ICE table. When making any assumptions you should show
that<br>
your assumptions are okay (less than 5% error). If the percent
error<br>
is greater than 5%, you need to solve the resulting quadratic
equation<br>
or use the method of successive approximations (both shown in
class<br>
and in the notes). You must show this work. If you don't, you will
not<br>
get full credit. Simply showing the ratio of
K<sub>a</sub>/[HA]<sub>o</sub> < 10<sup>-3</sup> is not<br>
sufficient
(similarly for a base using K<sub>b</sub> and [base]<sub>o</sub>).<br>
<br>
We finished section 17.3 (titrations) and are about halfway
through 17.5.<br>
Titrations and the solubility material from sections 17.4 and 17.5
are<br>
NOT on the next quiz. However, you want to try to get to this
material,<br>
particularly titrations, so you can get caught up.<br>
<br>
</tt> <tt><br>
Dr. Zellmer</tt>
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