Bag-Assembly for Gas Experiment
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Improved bag assembly. A, tape to r e d dropper to bog. B, tope to seal bag. C, bag.
796
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Journal of Chemical Education
An improved bag-assembly has been devised for use with the Chem Study Experiment, "The Weights of Equal Volumes of Gases." The rubber-stopper assembly suggested in the lab-manuals does not accept reproducible volumes of gases. The sandwich-size plastic hag can be sealed with cellophane tape and a small opening cot into the center to receive the dropper. The dropper is then sealed with small strips of tape (see the figure). The improved hag-assembly has the additional advantage of weighing ahout one-third that of the rubber-stopper assembly. MICHAI.:L Gnmony A ~ I N G T OHIGH N SCHOOL AIIINGTON, MAGSACHW~I:TTS 02351
