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Density Column Project

Density Column Project. Background. Density is the ratio of the mass and volume of a substance. Each substance has a specific value for density. If a substance floats in water, its density is less than that of water. If a substance sinks in water, its density is greater than that of water.

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Density Column Project

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  1. Density Column Project

  2. Background • Density is the ratio of the mass and volume of a substance. • Each substance has a specific value for density. • If a substance floats in water, its density is less than that of water. • If a substance sinks in water, its density is greater than that of water.

  3. Getting Started… Here are a list of websites that might help: • www.nap.edu/readingroom/books/nses/funny6d.html • media.nasaexplores.com/lessons/02-066/9-12_1.pdf • genchem.chem.wisc.edu/demonstrations/Gen_Chem_Pages/01mattermixpage/household_density_column.htm • membership.acs.org/t/tag/experiments.htm

  4. Pre-Lab Questions • Define the terms: density, intensive and extensive properties. • What units are usually used to express density?

  5. Procedure • You will find five liquids with different densities using the internet or textbook. • Gather those liquids that you have researched. • Slowly pour the most dense liquid into the container and continue until all five liquids have been added. The liquids should form layers. • Cap the container and write your name on it.

  6. Post-Lab Questions • What are your five liquids? • Which of your liquids has the greatest density? What is its density? • What are the densities of the rest of your liquids? • How could density be used to identify an unknown substance?

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