| Experiment 1: Measurements (Fall 2021) |
| Student Name | | Typical CHEM 181 Student Data Collected in BLUE |
| Density of Water (g/mL) | | 0.998526 | from CRC 63rd Ed, F1-2 |
| Table 1: Mass of Water Using a 25-mL Gradulated Cylinder and Top-Loading Balance |
| Run | Volume of Each Aliquot (mL) | Mass of Empty Beaker (g) | Mass of Beaker + Water (g) | Mass of Water (g) |
| 1 | 10.00 | 35.45 | 45.22 | 9.77 |
| 2 | 10.00 | | 54.99 | 9.77 |
| 3 | 10.00 | | 65.05 | 10.06 |
| 4 | 10.00 | | 76.11 | 11.06 |
| Average | | | | 10.17 |
| Standard Deviation | | | | 0.61 |
| | True Volume (mL) = | 10.18 |
| | %Error = | 1.8 | Low |
| Table 2: Mass of Water Using a 10-mL Volumetric Pipet and Top-Loading Balance |
| Run | Volume of Each Aliquot (mL) | Mass of Empty Beaker (g) | Mass of Beaker + Water (g) | Mass of Water (g) |
| 1 | 10.00 | 35.45 | 45.43 | 9.98 |
| 2 | 10.00 | | 55.42 | 9.99 |
| 3 | 10.00 | | 65.38 | 9.96 |
| 4 | 10.00 | | 75.36 | 9.98 |
| Average | | | | 9.98 |
| Standard Deviation | | | | 0.01 |
| | True Volume (mL) = | 9.99 |
| | %Error = | 0.08 | High |
| | Table 3: Mass amd Volume of Water Using a 10-mL Graduated Pipet and Analytical Balance |
| | Initial Pipet Reading (mL) | Final Pipet Reading (mL) | Volume of Water Added (mL) | Empter Beaker Mass (g) | Mass of Beaker + Water (g) | Mass of Water (g) |
| | 4.25 | 7.33 | 3.08 | 35.3398 | 38.4150 | 3.0752 |
| | 2.85 | 7.79 | 4.94 | | 43.3255 | 4.9105 |
| | 2.51 | 9.55 | 7.04 | | 50.3772 | 7.0517 |
| | 0.44 | 9.45 | 9.01 | | 59.3739 | 8.9967 |
| | Table 4: Graphing Data |
| | Volume of Water (mL) | Mass of Water (g) |
| | 0.00 | 0.0000 |
| | 3.08 | 3.0752 |
| | 4.94 | 4.9105 |
| | 7.04 | 7.0517 |
| | 9.01 | 8.9967 |
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ExcelforExpt1MeasurementsF21.xlsx
