Exp036

Dominican University Student Project 01/28/09 RF http://www.chemspider.com/Chemical-Structure.331.html
 * [result marked as DONOTUSE because too low compared to other reports - insufficient mixing JCB]**
 * Solute:** Salicylic Acid
 * Solute SMILES:** O=C(O)c1ccccc1O
 * Solute Type:** Carboxylic Acid
 * Solvent:** Ethanol
 * Solvent SMILES:** OCC

First a saturated solution, using salicylic acid as the solute, was mixed in a 200 mL beaker using approximately 100 mL of ethanol as the solvent. The solution was mixed manually by swirling the beaker. Approximately 10 mL of the saturated solution was transferred to four centrifuge tubes labeled 1-4. The tubes were placed in a centrifuge for approximately five minutes to separate undissolved solute. Then 3 mL of the saturated solution was pipetted from each of the centrifuge tubes into respective pre-weighed test tubes labeled 1-4. Each of the test tubes with solution were weighed. Next the test tubes were placed in a hot water bath to evaporate the solvent. The test tubes with compound were weighed. Prolonged evaporation of the solvent was allowed and the test tubes with compound were weighed again.
 * Procedure:**


 * Data:**
 * = ||= Experiment 1 ||= Experiment 2 ||= Experiment  3 ||= Experiment  4 ||
 * = Mass of empty evaporation vessel, g ||= 18.909 ||= 19.691 ||= 19.159 ||= 18.836 ||
 * = Mass of evaporation vessel + solution, g ||= 20.703 ||= 21.454 ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">20.934 ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">20.638 ||
 * = <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">Mass of evaporation vessel + solute, g ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">19.625 ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">20.306 ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">19.722 ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">19.505 ||
 * = <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">Vessel + solute after prolonged evaportation, g ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">19.450 ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">20.229 ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">19.705 ||= <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">19.409 ||


 * Calculations:**
 * <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';"> || <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">Experiment 1 || <span style="font-size: 12pt; font-family: 'Times New Roman','serif'; display: block; text-align: center;">Experiment <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';"> 2 || <span style="font-size: 12pt; font-family: 'Times New Roman','serif'; display: block; text-align: center;">Experiment <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';"> 3 || <span style="font-size: 12pt; font-family: 'Times New Roman','serif'; display: block; text-align: center;">Experiment <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">4 || <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">Average Value ||
 * <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">Mass Solute, g || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.541 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.538 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.546 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.573 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.5495 ||
 * <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">Mass Solvent, g || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.253 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.225 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.229 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.229 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.234 ||
 * <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">Solubility, g/mL || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.180 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.179 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.182 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.191 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">0.183 ||
 * <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">Molarity, moles/L || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.31 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.30 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.32 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.38 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.33 ||
 * <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">Molality, moles/kg || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.65 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.65 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.67 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.75 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">1.68 ||
 * <span style="display: block; text-align: center; font-size: 12pt; font-family: 'Times New Roman','serif';">Solubility, g/100g || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">30.2 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">30.5 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">30.8 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">31.8 || <span style="display: block; text-align: center; font-size: 12pt; color: black; font-family: 'Times New Roman','serif';">30.8 ||


 * Results:

Average Solubility, //g/100g//:** 30.8
 * Average Concentration, //moles/L//:** 1.33