EXP168

=Researcher= =Objective= Confirm that the density method can measure solubility for benzoic acid and methanol.
 * [Add you full name for all experiments. -AL]**

=Procedure=

=Results= [|EXP168 Sheet 1]

=Discussion= and are off enough from the Wikipedia value that I recommend you use your pure solvent measurement as your 0M datapoint. JCB]** =Conclusion=
 * [Do the results make sense? JCB]**
 * [The density of methanol at different temperatures is noted [|here]
 * [If you have the results accurate to 0.1 mg update the spreadsheet - otherwise you'll have to redo this experiment JCB]**

=Log= 10:13 - empty volumetric flask weighed on scale.[**report number - or create column in spreadsheet and add there JCB]** 10:15 - 1 mL methanol was added into the volumetric flask by pippet and then weighed on scale. **[Define sample number in the log here - according to your spreadsheet this is sample 1 JCB]** 10:50 - .307 mg Cinnamic Acid was measured out. **[I assumed you meant 30.7 mg and added in sheet - again define sample number 2 here JCB]** 10:55 - .307 mg Cinnamic Acid was added to volumetric flask. 10:56 - Methanol was added to solvent to make a 1 ml mixture. Mixture was then mixed by hand for 30 seconds. **[note if it all went into solution JCB]** 10:58 - Sample 1 mixture was weighed on scale. **[isn't this sample 2? JCB]** 11:00 - .62 mg Cinnamic Acid was measured out and added to empty volumetric flask. **[Again you mean 62 mg and not 0.62, right? Why do you have 0.1 mg accuracy above and only 1 mg accuracy here? JCB]** 11:03 - Methanol was added to solvent to make a 1 ml mixture, Mixture was then mixed by hand for 1 minute. 11:05 - Sample 2 mixute was weighed on was scale. 11:10 - .92 mg Cinnamic Acid was measured out and added to empty volumetric flash.**[Did you wash the volumetric with methanol before sample 3? JCB]** 11:15 - Methanol was added to solvent to make a 1 ml mixture. Mixture was then mixed by hand for 2 minutes. 11:17 - Sample 3 mixture was weighed on scale.