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list of experiments
Solubility book (3rd Edn)
Dominican University student project
ONS Solubility Challenge
01/28/09 Ashley Gans
Solute: Tartaric Acid
Type: Carboxylic Acid
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Solvent Density: 0.79 g/ cm^3
A saturated solution was made in a 125 ml Erlenmeyer flask by placing about 50ml of solvent into the flask and adding additional solute while hand swirling until no more solute dissolved. Start time: 2:00
A sonicator was used to make sure that all the solution was saturated when no more solute appeared to go into solution by hand swirling. 2:47
Four centrifuged tubes were filled with approximately 6 ml of saturated solution. Each tube was centrifuged for about 3 minutes.
The masses of four empty and clean test tubes were taken by taring an unused Erlenmeyer flask and setting the tube inside. Masses were recorded. 2:55
A precise volume of saturated solution was transferred into the test tubes. Volumes were recorded. 3:01
The masses of the four test tubes containing the saturated solution were measured using the same Erlenmeyer flask. Masses were recorded. 3:10
A hot water bath was used to boil off all solvent in each test tube. 3:15
The masses of all four test tubes containing the solute were measured. Masses were recorded. 3:54
The masses of test tubes were reweighed after a few days to account for prolonged evaporation. No change or the masses were recorded.
Volume of Saturated Solution
Mass of empty test tube (g)
Mass of test tube and solution (g)
Mass of test tube and Solute (g)
Concentration M (mol/L)
AVERAGE SOLUBILTY g/100g: 11.4838
AVERAGE CONCENTRATION mol/L : 0.7861
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