How to measure volume of gas?

How do you measure the volume of gas released when a can of cola is opened? (This from the Nov 2001 IGCSE question paper 6 Chemistry )

(Note: the can will have to be opened under water)

rael

Normally, u should use a gas syringe.
However, the point is when opening a can its difficult to direct the gas to the syringe. Remember its an O-Level question and the examiner is surely not looking for an extravagant process.

A simple answer like telling the person to open the can in a plastic, one end being fixed to the gas syringe should allow you to get full marks. You can draw a diagram to make your answer clearly.

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