EXP+246

= Researcher = Alex Greene = Objective = To determine if trans-cinnamic acid can be made into a 3.0 M concentration in the solvent THF using a 5ml volumetric flask = Procedure = Cinnamic acid was measured to on a balance to have a concentration of 3M in a 5ml volumetric flask. The Cinnamic acid was added to a volumetric flask. Then THF was added to the flask up to the 5ml mark on the volumetric flask. = Results = The Cinnamic acid failed to completely dissolve in the THF at room temperature with mixing by inverting and sonication. Undissolved cinnamic acid remained at the bottom of the volumetric flask. = Discussion = = Conclusion = The Cinnamic acid failed to completely dissolve in the solution of THF. The result is a contradiction of EXP 245, which had a cinnamic acid concentration around 3M = Log =

2012-01-11
11:17- A 5ml volumetric flask was weight at 23.7969g 11:20- 2.2260g of trans-cinnamic acid was weighted and transferred to volumetric flask 11:28- THF was added to volumetric flask up to 5ml mark 11:34- Inverted flask repeatedly for 8 seconds to mix solution 11:35- Sonicated flask for 5 seconds 11:38- Took picture #1