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Separation of sand (SiO2) and salt NaCl
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| Submitted: Wed Aug 13 2003
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Separation of sand (SiO2) and salt NaCl Aim I am trying to separate SiO2 and NaCl.lso I will calculate the percentage of SiO2 and NaCl in the mixture. Apparatus/Chemicals * Weighing bottle * Analytical balance * Bunsen Burner * Side arm flask * Thick walled rubber tube * 5 grams of the mixture SiO2 and NaCl * Tripod * 50ml of H2O * Filter paper * Funnel * Spatulas * Evaporating dish * Clamp * Boss * Gauze Method 1. Collect all apparatus above 2. Measure approximately 5 grams of the SiO2/NaCl mixture on an analytical balance. 3. Measure 50cm3 of H2O 4. Pour SiO2/NaCl mixture into beaker with H2O. 5. Stir the solution so that the salt dissolves. 6. Set up vacuum filtration 7. Pour the mixture in the Buckner funnel. 8. Wait for the H2O to run into the conical flask. 9. Set up Bunsen burner. 10. Heat H2O left in the conical flask in an evaporating dish. 11. The H2O will evaporate leaving behind NaCl. 12. Weigh SiO2 and the NaCl. Results Weight of mixture before...
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