The freezing point of the pure solvent and the freezing point of the solvent with added solute.<br><br>Sent from my Nexus 7 Android Tablet<br><br>Andrew J. Pounds, Ph.D.<br>Mercer University, Macon, GA<br><br><br>Mary Caroline Logan <Mary.Caroline.Logan@live.mercer.edu> wrote:<br><br>
<div>For the delta T (change in temperature) portion of the formula used to find molar mass, what two temperatures are we to use?<br>
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Caroline Logan</div>
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On Jun 30, 2013, at 5:23 PM, "Andrew J. Pounds" <<a href="mailto:pounds_aj@mercer.edu">pounds_aj@mercer.edu</a>> wrote:<br>
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<div class="moz-cite-prefix">On 06/30/13 15:24, wrote:<br>
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<pre wrap="">To calculate freezing points, for example for trial 1 of pure solvent, do we average all the temperatures for the freezing point? Or do we take the first temperature where it started to level off and use that?
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<font face="serif">The freezing point is the temperature where the two lines intersect. Look back at the figure at the bottom of the lab procedures:<br>
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<a class="moz-txt-link-freetext" href="http://chemistry.mercer.edu/genchem/112Lab3.pdf">http://chemistry.mercer.edu/genchem/112Lab3.pdf</a><br>
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and also take a look at the example on the class web page in the LAB section. For each experiment you should have two lines that intersect. The temperature at the intersection point is the freezing point.<br>
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<pre class="moz-signature" cols="72">--
Andrew J. Pounds, Ph.D. (<a class="moz-txt-link-abbreviated" href="mailto:pounds_aj@mercer.edu">pounds_aj@mercer.edu</a>)
Professor of Chemistry and Computer Science
Mercer University, Macon, GA 31207 (478) 301-5627
<a class="moz-txt-link-freetext" href="http://faculty.mercer.edu/pounds_aj">http://faculty.mercer.edu/pounds_aj</a>
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