Exp. 2 Flow Chart

Exp. 2 Flow Chart - CHE 141 Lab Experiment 2 Flow Chart A....

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CHE 141 Lab Julianne Stiene Experiment 2 Flow Chart September 23, 2007 A. Dissolving the Soluble Salts a. Obtain unknown sample b. Record unknown # c. Weigh test tube and unknown mixture and record mass in DATA SECTION d. Transfer mixture to a clean 250-mL beaker e. Reweigh empty test tube and record mass in DATA SECTION f. Add 100.mL distilled water into beaker g. Warm the mixture of unknown and water with a Bunsen burner h. Stir with glass stirring rob until soluble solids are completely dissolved A. Separating Sand a. Obtain filter paper to fit a Buchner funnel b. Determine mass of filter paper as well as the mass of 10 cm water glass c. Set up vacuum filtration apparatus i. Use heavy walled tubing to connect to aspirator to the filter flask d. Remove the sand from beaker by filtering sand through the pre-weighed filter paper by vacuum filtration e. Use rubber policeman to help transfer all sand to your filter paper in the Buchner funnel f. Rinse beaker twice with 2 5mL portions of distilled water and filter these washings
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Exp. 2 Flow Chart - CHE 141 Lab Experiment 2 Flow Chart A....

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