# 2 measure the volume for this same sample by water

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2. Measure the volume for this same sample by water displacement and record the value in Data Table 1 Use the 50 mL graduated cylinder for silicon and 10 mL for tin and lead. 3. Repeat this process for two more samples of silicon to ensure you have three trials of data.
4. Repeat steps 1-3 for tin and lead. Results Data table Element Trial Mass (g) Volume (mL) Density (g/mL) Average of three trials (g/mL) Si Trial 1 1.5 .5 1.5/.5=2.2 2.2g/mL Trial 2 1.5 .5 1.5/.5=2.2 Sn Trial 1 3.3 .5 3.3/.5=6.6 6.6g/mL Trial 2 3.3 .5 3.3/.5=6.6 Pb Trial 1 3.5 .5 3.5/.5=7 7g/mL Trial 2 3.5 .5 3.5/.5=7 Si - Data: 1.5/.5=2.2 Sn - Data: 1.5/.5=2.2 Pb - Data: 3.5/.5=7 Calculations: 1-Si D:mass=1.1g volume=5ml U. Density F. D=m/v 2-Sn
D: mass=3.3g volume=.5 U: Density F: d=m/v 3.3g/.5ml=6.6g/ml 3-Pb D:mass=3.5 volume=5ml U: density F: d=m/v Conclusion: The purpose was to predict the property of an element based on its location in the periodic table. The hypothesis was that the density of germanium will be greater than the density of silicon. The hypothesis was correct. According to the data, density increases down the group. Germanium is below silicon so the density is higher.

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