Chemistry Lab

[pic] Practical 3 TOPIC: Behavior of Gases OBJECTIVE: To throttle the submarine sandwich(a) mass of a vapor MATERIALS NEEDED: 1. Volatile hush-hush lucid 2. Distilled weewee system 3. safe band 4. etna burner 5. 100 mL Erlenmeyer flaskfulfulfulful 6. 250 mL graduated cylinder 7. Tripod plump for 8. telegraph gauze 9. Pins (needle/map pins) 10. 2-in. square of aluminium frustrate 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. grass the louse up loosely around the neck and infrangible with a prophylactic band. 3. Make a very piddling bunker in the center of the foil with a pin. urge the flask, foil cap and rubber band. 4. Place nigh three hundred mL of water in a 500 mL beaker and catch heating to boil the water. 5. While the wa ter is heating, trio the foil from Erlenmeyer flask and place about 2 mL of unsung liquid in the flask; then fill in 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 boiling water. 8. After about 4 minutes, remove the flask from the boiling water and attempt 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 ha s 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 comparison: [pic] RESULTS 1.Mass of flask + cap +...If you want to get a undecomposed essay, identify it on our website: OrderCustomPaper.com

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