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<tt>Quiz 2 will cover: Sections 13.3, 13.5-13.6<br>
<br>
<br>
<b>Section 13.3:</b><br>
<br>
Factors affecting solubility - Att. forces ("like dissolves
like"), pressure<br>
and temp. affects. You're considering temp. effects and "like
dissolves like"<br>
concepts in exp 15.<br>
<br>
I have summary on line about attractive forces and solubility. See
the link<br>
"Ch. 11 & 13 - Review of IAF, Solids and Solubility" in the
"notes" section of<br>
the course web page.<br>
<br>
<a moz-do-not-send="true"
href="http://chemistry.osu.edu/%7Erzellmer/chem1220/notes/ch11_12_13_rev.htm">http://chemistry.osu.edu/~rzellmer/chem1220/notes/ch11_12_13_rev.htm</a><br>
<br>
<br>
<b>Sections 13.5-13.6:</b><b><br>
</b><br>
Make sure you can do colligative property calculations, including<br>
for ionic substances or ionizing molecular substances (things that<br>
dissociate or ionize to give multiple particles, NaCl, HCl, etc.).<br>
Know what the van't Hoff factor is (effective # particles or<br>
observed "i" - see "A Closer Look" on page 551, 14th ed., page
558,<br>
13th ed., page 540, 12th ed., 554, 11th ed., page 557, 10th ed.<br>
and my notes). Look at the link I have about colligative
properties<br>
under the "Helpful Tidbits" link,<br>
<br>
<a moz-do-not-send="true"
href="http://chemistry.osu.edu/%7Erzellmer/chem1220/faq/collig_prop.txt">http://chemistry.osu.edu/~rzellmer/chem1220/faq/collig_prop.txt<br>
</a><br>
which was e-mailed earlier.<br>
<br>
An "ideal" ionic solution is one in which "i" (van't Hoff factor)
equals<br>
the # of ions one gets from the formula when something
dissocitates or<br>
ionizes. For NaCl the ideal "i" would be 2. For HCl the ideal
"i" would<br>
be 2 (HCl is a molecular cmpd and when put in water it completly
ionizes<br>
to produce H+ & Cl-). For a weak acid such as acetic acid,
CH3CO2H, it<br>
doesn't completely ionize thus it's not possible to determine
exactly what<br>
"i" is but it would be between 1, no ionization, and 2, completely<br>
ionized. This is explained in more detail at the link above.<br>
<br>
You should understand how osmosis effects cells.<br>
<br>
Finally, you should understand what colloids are and how you tell<br>
whether you have a colloid or a solution (Tyndall effect). Also,
you<br>
should know the difference between hydrophilic and hydrophobic
colloids.<br>
<br>
You should review section 2.7-2.8 on ions, their charges and
polyatomic<br>
ions, which stay together as a single unit when an ionic compound
dissolves. <br>
Also, review sections 4.1-4.3 which deal with electrolytes and
nonelectrolytes<br>
in solution and acid/base reactions. Look at tables 4.2 and 4.3
in relation<br>
to strong and weak acids and bases.<br>
<br>
</tt><br>
<tt><tt><b>Homework coverage (you should be able to all problems in
the given ranges)</b><b>:</b><br>
<br>
</tt>You should be able do to homework problems 13.6-13.8,
13.10-13.12,<br>
13.27-13.38, 13.61-13.112, 13.114<br>
<br>
For those of you using the 13th edition the quiz covers sections
13.3, 13.5-13.6<br>
You should be able do to homework problems 13.6-13.8, 13.10-13.12,<br>
13.27-13.38, 13.61-13.112, 13.114<br>
<br>
For those of you using the 12th edition the quiz covers sections
13.3, 13.5-13.6<br>
You should be able do to homework problems 13.6-13.8, 13.10-13.12,<br>
13.27-13.38, 13.61-112<br>
<br>
For those of you using the 11th edition the quiz covers sections
13.3, 13.5-13.6<br>
You should be able do homework problems 13.6-13.8, 13.10-13.12,<br>
13.25-13.34, 13.57-13.112<br>
<br>
For those of you using the 10th edition the quiz covers sections
13.3, 13.5-13.6<br>
You should be able do homework problems 13.5-13.6, 13.8-13.10,<br>
13.23-13.32, 13.55-13.107<br>
<br>
<b>For the on-line homework:</b><b><br>
</b><br>
Do ch 13 problems 7-20.<br>
<br>
<br>
Dr. Zellmer<br>
</tt>
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