Experimental procedure, Part A. 3b. Explain how a water-filled graduated cylinde

Question

Experimental procedure, Part A. 3b. Explain how a water-filled graduated cylinder is inverted in a pan of water. b) Experimental procedure, part A 4. What is the proper procedure for inserting a piece of glass tubing into a rubber stopper? Experimental procedure, part C.1. How is the volume of the CO_2(g) collected (over water) measured in this experiment ? A thermometer is not present in the space (or volume) in which the CO_2(g) is collected in this experiment. a. How then is the temperature of the CO_2(g) determine in this experiment? b. The mass of a gas is elusive. How is the mass of the CO_2(g) collected over water determine in this experiment?

Explanation / Answer

b. Inserting a glass tube in the rubber stopper is done by first making a proper hole on the rubber stopper, the size of the glass tubing. Rinse the glass tube with water for lubrication. Then very carefully bringing the tube near this opening and inserting the tube in the hole. Always wear protecting gloves before inserting the tube and handling the glasswares.

4. Volume of CO2 collected over water is measured by taking the difference of final water level to the initial water level.

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