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18 Nov 2019
PROCEDURES 1. Obtain a 2. Set up a hot water bath over a Trrill burner using a ring stand, wire gauze, completely dry polypropylene 250mL Erlenmeyer flask (with the stopper assemblhy') asten a clamp at the top of the flask and position it as low as possible in the water bath and safety ring 4. Place the stopper assembly securely into the flask. Fill the water bath with tap water to about one inch below the brim of the beaker 5. Wit h the stopcock open to the air (with the red arms positioned vertically). heat the water bath until the water has boiled for five minutes thermometer ines Record the temperature of the boliling water. Do not leave the temperature of thermometer in the water while heating. Place a stopper in the sink and fill it with cold water 6. (with the red arms positioned horizontally) and turn off the burner 8. Transfer the hot Erlenmeyer flask to the cold water bath (the sink). Hold the lask under water with the 9. Hold the flask completely under water for five minutes. If the stopper falls out, simply push it back in 10. Raise the flask up (while keeping the stopcock submerged) until the water level inside the flask matches stopper pointing down, then open the stopcock so as to not allow any air into or out of the flask keeping the stopcock open, and without letting any air in or out. Record the temperature of the sink waer the water level in the sink (outside the flask). The leveling makes the pressure inside the flask equal to 11. Remove the stopper assembly. Measure the volume of the water in the flask by carefully pouring it into a 12. Determine the volume of the Erlenmeyer flask by filling it to the bottom of the stopper with water, and then 13. Obtain the barometric (atmospheric) pressure in the lab from the digital barometer, and look up the 14. Obtain data for a second trial as directed by your instructor atmospheric pressure. Close the stopcock and remove the flask from the water graduated cylinder. Record all volumes to the tenths place. measuring the volume of water (in portions) with a graduated cylinder appropriate vapor pressure of water from the provided table. Trial 1 Trial 2 slip # DATA Temperature of boiling water Temperature of cool water Barometric pressure Vapor pressure of water Partial pressure of cool gas Volume of water in flask Volume of flask with stopper 0 32.3â /ao.3â- "T f orr crf å33.1?for a 98.o mb a.0m Volume of the cool gas Data partner for Trial 1: ilaia Alen (remember, you may not work together on the report) converted into another unit (e.g., 18.0°C 291.2 K) Each experimenter is responsible to do the unit conversions correctly even when data are shared. -Record data in the units actuallymeasured (e.g., â). It would be acceptable to also include the value
PROCEDURES 1. Obtain a 2. Set up a hot water bath over a Trrill burner using a ring stand, wire gauze, completely dry polypropylene 250mL Erlenmeyer flask (with the stopper assemblhy') asten a clamp at the top of the flask and position it as low as possible in the water bath and safety ring 4. Place the stopper assembly securely into the flask. Fill the water bath with tap water to about one inch below the brim of the beaker 5. Wit h the stopcock open to the air (with the red arms positioned vertically). heat the water bath until the water has boiled for five minutes thermometer ines Record the temperature of the boliling water. Do not leave the temperature of thermometer in the water while heating. Place a stopper in the sink and fill it with cold water 6. (with the red arms positioned horizontally) and turn off the burner 8. Transfer the hot Erlenmeyer flask to the cold water bath (the sink). Hold the lask under water with the 9. Hold the flask completely under water for five minutes. If the stopper falls out, simply push it back in 10. Raise the flask up (while keeping the stopcock submerged) until the water level inside the flask matches stopper pointing down, then open the stopcock so as to not allow any air into or out of the flask keeping the stopcock open, and without letting any air in or out. Record the temperature of the sink waer the water level in the sink (outside the flask). The leveling makes the pressure inside the flask equal to 11. Remove the stopper assembly. Measure the volume of the water in the flask by carefully pouring it into a 12. Determine the volume of the Erlenmeyer flask by filling it to the bottom of the stopper with water, and then 13. Obtain the barometric (atmospheric) pressure in the lab from the digital barometer, and look up the 14. Obtain data for a second trial as directed by your instructor atmospheric pressure. Close the stopcock and remove the flask from the water graduated cylinder. Record all volumes to the tenths place. measuring the volume of water (in portions) with a graduated cylinder appropriate vapor pressure of water from the provided table. Trial 1 Trial 2 slip # DATA Temperature of boiling water Temperature of cool water Barometric pressure Vapor pressure of water Partial pressure of cool gas Volume of water in flask Volume of flask with stopper 0 32.3â /ao.3â- "T f orr crf å33.1?for a 98.o mb a.0m Volume of the cool gas Data partner for Trial 1: ilaia Alen (remember, you may not work together on the report) converted into another unit (e.g., 18.0°C 291.2 K) Each experimenter is responsible to do the unit conversions correctly even when data are shared. -Record data in the units actuallymeasured (e.g., â). It would be acceptable to also include the value
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