Chemistry Foul Water Lab Purpose: To purify water using filtration. Procedure: 1. Obtain 100 ml of foul water. Record observations. 2. Use a plastic spoon to remove as much oil as possible. Place the oil on a paper towel. Dispose of it in the trash. Record observations before you continue to the next step. 3. Set up a filtration using the following diagram: 4. Add the foul water to the filter. Allow the water to trickle through. Record observations. 5. Add ½ tsp of activated charcoal to the filtered water. Stir. Filter the water through a paper filter and funnel apparatus. Record observations. 6. Test the purity of the water using electrical conduction. Record. Data: Create a data chart for the observations. Questions: Write the answers in complete sentences in your lab notebook. Some answers may require a paragraph. 1. What types of impurities can be removed using filtration? 2. What types of impurities cannot be removed using filtration? 3. Calculate your percent yield. 4. Compare this filtration with a Britta water filter. Be sure to credit the sources of your information.