Exp190

=Researcher= Sozit Kurtu =Objective= To qualify near-melting point behavior with regards to solubility, specifically in the case of [|tert-butanol] (m.p. 25C) in //n//-hexane from 40C to -8.5C. The additivity of volumes is an [|assumption] and the densities of the solvent and solute are obtained from the ChemSpider prediction. =Procedure= =Results= [|Calculations] =Discussion= N/A =Conclusion= =Log=
 * // This experiment was aborted due to excessive time between steps. //**

2010-11-10
11:30 - Began to make 0.5M solution. Noticed it went into solution very easily. 11:35 - Made 5M and 7.5M solutions (Tube A and B, respectively). Put aside until samples A-E from experiment 189 finished heating in the bath. 13:00 - Put samples in bath at 50C. 13:15 - Set temp to 45C. Actual 50C. 13:20 - Set temp to 40C. Actual 46C. 13:45 - Set temp to 35C. Actual 40C. 13:53 - Set temp to 30C. Actual 36C. 13:57 - Set temp to 25C. Actual 30.5C. 14:08 - Set temp to 20C. Actual 25C. 14:10 - Set temp to 15C. Actual 22C. 14:20 - Set temp to 10C. Actual 15C. 14:25 - Set temp to 5C. Actual 10C. 14:30 - Set temp to 0C. Actual 4.5C. 14:40 - Set temp to -5C. Actual 0C.