Gen Chem 2: Solubility Product Constant
| [Solubility Product Constant] | Experiment 11 | | Molly McCabe | 4/18/2013 |
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Data Tables:
Part 1 and Part 2 Experimental Data: Standard | Calculated volume of copper sulfate in standards | Absorbance values | Blank | 0.0 mL | 0.0 | 1 | 1.25 mL | 0.094 | 2 | 3.75 mL | 0.065 | 3 | 2.50 mL | 0.099 | 4 | 3.50 mL | 0.129 | 5 | 5.00 mL | 0.187 | Collected Data | Test tube 1 | Test tube 2 | Test tube 3 | Test tube 4 | Test Tube 5 | Initial volume (mL) | 0.05 | 0.10 | 0.0 | 0.0 | 0.0 | Final volume (mL) | 24.25 | 22.10 | 25.0 | 23.70 | 19.90 | Total volume (mL) | 24.20 | 22.0 | 25.0 | 23.70 | 19.90 | Molarity S2O3- | 0.02519 M | 0.02519 M | 0.02519 M | 0.02519 M | 0.02519 M | [IO3-] | 0.0254 M | 0.0231 M | 0.0285 M | 0.0249 M | 0.0209 M | [Cu2+] | 1.66 x 10-2 M | 1.61 x 10-2 M | 1.76 x 10-2 M | 2.38 x 10-2 M | 3.58 x 10-2 M | Ksp | 1.07 x 10-5 | 8.59 x 10-6 | 1.43 x 10-5 | 1.48 x 10-5 | 7.48 x 10-4 |
Class Data Group | Trial 1 (Ksp) | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Molly and Brooke | 1.07 x 10-5 | 8.59 x 10-6 | 1.43 x 10-5 | 1.48 x 10-5 | 7.48 x 10-4 | Casey and Marissa | 4.60 x 10-6 | 8.00 x 10-6 | 9.24 x 10-6 | 2.66 x 10-5 | 1.59 x 10-5 | Giang and Kristen | 1.11 x 10-5 | 1.32 x 10-5 | 1.56 x 10-5 | 1.37 x 10-5 | 1.81 x 10-5 | Alicia and Dan | 6.01 x 10-6 | 5.75 x 10-6 | 1.92 x 10-6 | 1.12 x 10-5 | 1.48 x 10-5 |
Calculated Data Group | Average Ksp | Standard Deviation | Percent Error | Molly and Brooke | 1.59 x 10-4 | ± 3.29 x 10-4 | -113471.4% | Casey and Marissa | 1.30 x 10-5 | ± 8.80 x 10-6 | -9185.7% | Giang and Kristen | 1.43 x 10-5 | ± 2.64 x 10-6 | -10114.3% | Alicia and Dan | 7.94 x 10-6 | ± 5.06 x 10-6 | -5571.4% |
Uncertainties: 10 mL volumetric flask | ± 0.02 | 25 mL volumetric flask | ± 0.03 | 1 mL volumetric pipet | ± 0.006 | 5 mL volumetric pipet | ± 0.01 | 4 mL volumetric pipet | ± 0.015 | 3 mL volumetric pipet | ± 0.010 | 50 mL graduated
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Data Tables:
Part 1 and Part 2 Experimental Data: Standard | Calculated volume of copper sulfate in standards | Absorbance values | Blank | 0.0 mL | 0.0 | 1 | 1.25 mL | 0.094 | 2 | 3.75 mL | 0.065 | 3 | 2.50 mL | 0.099 | 4 | 3.50 mL | 0.129 | 5 | 5.00 mL | 0.187 | Collected Data | Test tube 1 | Test tube 2 | Test tube 3 | Test tube 4 | Test Tube 5 | Initial volume (mL) | 0.05 | 0.10 | 0.0 | 0.0 | 0.0 | Final volume (mL) | 24.25 | 22.10 | 25.0 | 23.70 | 19.90 | Total volume (mL) | 24.20 | 22.0 | 25.0 | 23.70 | 19.90 | Molarity S2O3- | 0.02519 M | 0.02519 M | 0.02519 M | 0.02519 M | 0.02519 M | [IO3-] | 0.0254 M | 0.0231 M | 0.0285 M | 0.0249 M | 0.0209 M | [Cu2+] | 1.66 x 10-2 M | 1.61 x 10-2 M | 1.76 x 10-2 M | 2.38 x 10-2 M | 3.58 x 10-2 M | Ksp | 1.07 x 10-5 | 8.59 x 10-6 | 1.43 x 10-5 | 1.48 x 10-5 | 7.48 x 10-4 |
Class Data Group | Trial 1 (Ksp) | Trial 2 | Trial 3 | Trial 4 | Trial 5 | Molly and Brooke | 1.07 x 10-5 | 8.59 x 10-6 | 1.43 x 10-5 | 1.48 x 10-5 | 7.48 x 10-4 | Casey and Marissa | 4.60 x 10-6 | 8.00 x 10-6 | 9.24 x 10-6 | 2.66 x 10-5 | 1.59 x 10-5 | Giang and Kristen | 1.11 x 10-5 | 1.32 x 10-5 | 1.56 x 10-5 | 1.37 x 10-5 | 1.81 x 10-5 | Alicia and Dan | 6.01 x 10-6 | 5.75 x 10-6 | 1.92 x 10-6 | 1.12 x 10-5 | 1.48 x 10-5 |
Calculated Data Group | Average Ksp | Standard Deviation | Percent Error | Molly and Brooke | 1.59 x 10-4 | ± 3.29 x 10-4 | -113471.4% | Casey and Marissa | 1.30 x 10-5 | ± 8.80 x 10-6 | -9185.7% | Giang and Kristen | 1.43 x 10-5 | ± 2.64 x 10-6 | -10114.3% | Alicia and Dan | 7.94 x 10-6 | ± 5.06 x 10-6 | -5571.4% |
Uncertainties: 10 mL volumetric flask | ± 0.02 | 25 mL volumetric flask | ± 0.03 | 1 mL volumetric pipet | ± 0.006 | 5 mL volumetric pipet | ± 0.01 | 4 mL volumetric pipet | ± 0.015 | 3 mL volumetric pipet | ± 0.010 | 50 mL graduated