Densities of Liquids and Solids

Densities of Liquids and Solids - Table 2 Density of an...

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Densities of Liquids and Solids by Natalie E. Cook Lab Instructor: David Barber September 16, 2008
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Results An unknown liquid and an unknown sample were identified by calculating their densities. First, the density of water was calculated. I. Density of Water Three experimental trials were performed, with data and calculated results recorded in Table 1. Table 1: Density of Water Trial # Mass (g) Volume (mL) Density (g/mL) 1 10.000 10 1.000 2 10.020 10 1.002 3 9.9300 10 0.993 The densities were calculated using the formula density = mass / volume 1. 10.000 g = 1.000 g/mL 2. 10.020 g = 1.002 g/mL 3. 9.9300 g = 0.993 g/mL 10 mL 10 mL 10 mL The average of these densities was: 1.000 g/mL + 1.002 g/mL + 0.993 g/mL_ = .9983 g/mL 3 The percent error of the calculation of the density of water was: 1 g/mL - 0.9983 g/mL x 100% = 17% error 1 g/mL
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II. Density of Unknown Liquid Six experimental trials were performed, with data and calculated results recorded in Table 2.
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Unformatted text preview: Table 2: Density of an Unknown Liquid Trial # Mass (g) Volume (mL) Density (g/mL) 1 9.016 10 0.9016 2 9.248 10 0.9248 3 9.068 10 0.9068 4 8.707 10 0.8707 5 9.002 10 0.9002 6 9.030 10 0.9030 The densities were calculated using the formula density = mass / volume. An example of such a calculation using the trial # 1 data follows: 9.016 g = 0.9016 g/mL 10 mL The average of these six densities was: 9.016 g + 9.248 g + 9.068g + 8.707g + 9.002g + 9.030 g = 0.9011 g/mL 6 III. Density of an Unknown Solid Four experimental trials were performed, with data and calculated results recorded in Table 3. Table 3: Density of an Unknown Solid Trial # Mass (g) Volume (mL) Density (g/mL) 1 10.975 10 2 10.975 10 3 10.975 10 4 10.975 10...
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