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Unformatted text preview: Water, 25 mL 5.0038 5.0128 Acetone, 5 mL 3.0697 3.0752 Acetone, 10 mL 4.4677 4.4758 Acetone, 15 mL 3.8800 3.8870 Acetone, 20 mL 3.8745 3.8815 Acetone, 25 mL 3.8858 3.8928 Vpipette, avg = 5.0006 mL Density of Acetone = 0.7670 g/mL Mixture Mass (g) Volume (mL) Water (5 mL), then Water (5 mL) 10.0786 10.1 mL Water (5 mL), then Acetone (5 mL) 8.9931 10.0 mL Acetone (5 mL), then Water (5 mL) 9.0588 10.5 mL Calculations: I did 5 different kinds of calculations for this experiment: 1) mass, substance = (mass with substance added) (previous mass) m of 5mL, water = 57.0753  49.4696 = 7.6057g 2) Volume = mass/density V of 5mL, water = 7.6057 / 0.9982 = 7.6194mL 3) Volume, average = (V1 + V2. .. + V5) /5 Vpipette, avg = (7.6194+2.3881+4.9874+4.9955+5.0128)/5 = 5.0006mL 4) Deviation = Vpipette Vpipette, avg Deviation of V of 5mL from avg = 7.6194 5.0006 = 2.6188 5) Density = mass/volume Density of acetone = 3.8355 / 5.0006 = 0.7670 g/mL...
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This note was uploaded on 09/12/2011 for the course CHEM 117 taught by Professor Brown during the Spring '09 term at Texas A&M.
 Spring '09
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