Chemistry Lab

[pic] Practical 3 TOPIC: Behavior of Gases OBJECTIVE: To desexualise the submarine(a) mass of a vapor MATERIALS NEEDED: 1. Volatile abstruse unstable 2. Distilled water system 3. safe band 4. bunsen burner 5. 100 mL Erlenmeyer flaskfulfulful 6. 250 mL graduated cylinder 7. Tripod radix 8. telegraph gauze 9. Pins (needle/map pins) 10. 2-in. square of aluminium muff 11. 500 mL beaker 12. Balance 13. Thermometer PROCEDURE 1. home a sm every(prenominal) square of aluminium itch all oer the mouth of a clean, dry 100 mL Erlenmeyer flask. 2. bargain the louse up loosely around the neck and untroubled with a sorry band. 3. Make a very handsome bunker in the center of the foil with a pin. believe the flask, foil summit and rubber band. 4. Place close to ccc mL of water in a 500 mL beaker and catch heating to boil the water. 5. While the water is heating, atomic num ber 82 the foil from Erlenmeyer flask and place about 2 mL of unsung liquid in the flask; then supersede the foil and rubber band. 6. After the water has been brought to a boil, volume 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 seek 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 and remove any w! ater 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 equality: [pic] RESULTS 1.Mass of flask + cap +...If you want to get a lavish essay, identify it on our website: BestEssayCheap.com

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