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| =Experimental Procedure=
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| #Mass an empty 50mL beaker and place it at the distillation apparatus as a receiving flask.
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| #Get a 100mL graduated cylinder and fill it with 50.0mL of the mouthwash sample you are assigned to and record the "exact" volume and sample letter on data sheet.
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| #Using a long stemmed funnel, add the mouthwash into the distilling flask through the top arm. Be careful no liquid runs into the side arm.
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| #Add 2-3 boiling chips to the distilling vessel.
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| #Put the side arm with thermometer in place; be sure the bulb end of the thermometer extends past the arm leading into the condenser.
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| #Turn on the water for a very gentle flow and begin heating; a heating mantle is the heat source.
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| #Heat the mouthwash to a gentle boil. Control the temperature so there is a constant rate of ethanol distilling over. (15-20 drops/minute)
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| #Observe and record the temperature of the vapor when the first few drops are collected; this is the boiling point of the azerotrope.
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| #Chart the distillation beginning with the first drop that is collected. Record the temperature when the first drop falls into the graduated cylinder. Use it as the first data point and then record the volume and temperature each minute until 20mL have been collected. As the mixture continues to distill, the temperature of the vapor will rise.
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| #Initially the vapor temp will be close to the boiling point of ethanol (78.5C). The temperature will slowly increase until the boiling point of water (98C). At this point, all ethanol and some water will be distilled.
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| #Remove the heat source and allow the setup to cool for 5 minutes.
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| #Record the mass of the graduated cylinder plus the distillate on the data sheet. Read/record the final volume of the distillate collected.
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| #Computer density of distillate and complete rest of calculations. Use correct sig figs.
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| =Helpful Links=
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| Periodic Table
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| \http://sviva.technion.ac.il/downloads/PeriodicTable.jpg
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| accessing lcc registration
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| https://starnet.lcc.edu/OA_HTML/US/ICXINDEX_GOLD_astro.htm
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| =UAT=
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| ==General Education Requirements--Bachelor's Degree==
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| Minimum 36 total general education credit hours, including:
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| · Humanities--Minimum 15 credit hours including:
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| ENG101 Composition I
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| ENG102 Composition II
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| COM226 Public Speaking
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| · Social Sciences--Minimum 9 credit hours including:
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| SOC150 Technology and Society
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| PSY150 Psychology of Thinking
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| · Mathematics--Minimum 3 credit hours for Bachelor of Arts.
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| Minimum 6 credit hours with 3 credit hours at 200-level or
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| higher for Bachelor of Science.
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| · Natural and Life Sciences--Minimum 3 credit hours for
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| Bachelor of Arts. Minimum 6 credit hours for Bachelor of
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| Science.
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|
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| ===Credits===
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| ====Humanities====
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| *ENG101 - Composition I (ENGL AP test) - 3 credits
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| *ENG102 - Comp II (ENGL122) - 3 Credits*
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| *COM226 - Public Speaking (SPCH130) - 3 Credits*
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| *TRH103 - Humanities Elective (JAPN115) - 3 Credits*
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| *Need 3 more credits
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|
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| ====Social Sci====
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| *TRSS104 - Social Science Elective (HUMS212, 4 credits)*
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| *SOC150 - Tech and Society - 3 credits**
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| *PSY150 - Psych and Thinking - 3 Credits ** (Ask Ryan about his psy teacher)
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| *Need 0 Credits w/UAT classes
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|
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| ====Mathematics====
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| *Minimum 6 credit hours with 3 credit hours at 200-level
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| ====Nat/LifeSci====
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| *Minimum 6 credit hours for Bachelor of
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| Science.
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