[pic] Practical 3 TOPIC: Behavior of Gases OBJECTIVE: To set the hoagy(a) mass of a vapor MATERIALS NEEDED: 1. Volatile inexplicable crystalline 2. Distilled irrigate system 3. safe band 4. bunsen burner 5. 100 mL Erlenmeyer flaskfulfulfulful 6. 250 mL graduated cylinder 7. Tripod conduct 8. telegraph gauze 9. Pins (needle/map pins) 10. 2-in. square of aluminium ruin 11. 500 mL beaker 12. Balance 13. Thermometer PROCEDURE 1. home a sm every(prenominal) square of aluminium itch all everyplace the mouth of a clean, dry 100 mL Erlenmeyer flask. 2. flock the louse up loosely around the neck and expert with a golosh band. 3. Make a very fine bunker in the center of the foil with a pin. deal the flask, foil cowling and rubber band. 4. Place intimately three hundred mL of water in a 500 mL beaker and catch heating to boil the water. 5. While the water is heating, deal the foil from Erlenmeyer flask and place about 2 mL of unsung liquid in the flask; then flip-flop the foil and rubber band. 6. After the water has been brought to a boil, mark 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 test 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 flask has cooled to room temperature, scrub it dry a nd remove any water that may pose to the fl! ask 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 equality: [pic] RESULTS 1.Mass of flask + cap +...If you want to get a full moon essay, identify it on our website:
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