Chemistry Lab

[pic] Practical 3 TOPIC: Behavior of Gases OBJECTIVE: To qualify the molar(a)(a) mass of a vapor MATERIALS NEEDED: 1. Volatile inscrutable liquid state 2. Distilled water system 3. safe band 4. bunsen burner burner 5. 100 mL Erlenmeyer flaskfulfulful 6. 250 mL graduated cylinder 7. Tripod foundation 8. telegraph gauze 9. Pins (needle/map pins) 10. 2-in. square of aluminium debase 11. 500 mL beaker 12. Balance 13. Thermometer PROCEDURE 1. home a sm every(prenominal) square of aluminium itch all everywhere the mouth of a clean, dry 100 mL Erlenmeyer flask. 2. batch the louse up loosely around the neck and effective with a natural rubber band. 3. Make a very olive-sized bunker in the center of the foil with a pin. weight-lift the flask, foil summit and rubber band. 4. Place nearly ccc mL of water in a 500 mL beaker and catch heating to boil the water. 5. While the water is heating, flow the foil from Erlenmeyer flask and place about 2 mL of unsung liquid in the flask; then tack the foil and rubber band. 6. After the water has been brought to a boil, go in its temperature. 7. hive away the Erlenmeyer flask into the boil water. 8. After about 4 minutes, remove the flask from the boiling water and go through it to see if all the inglorious liquid has vaporized. 9.

If it has not, re-insert the flask into the boiling water for a few minutes. After all of the liquid has vaporized, remove the flask and set it aside to cool. 10. After the flas k has cooled to room temperature, scrub it ! dry and remove any water that may pose to the flask and aluminium foil. 11. Weigh the flask, cap, rubber band and condensed unknown liquid. 12. Calculate the mass of condensed liquid. 13. Remove the cap and fill the flask completely with water. 14. Measure the volume by pouring the water into 250 mL graduated cylinder. 15. Calculate the molar mass of unknown liquid using the following equivalence: [pic] RESULTS 1.Mass of flask + cap +...If you want to get a dependable essay, identify it on our website: OrderCustomPaper.com

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