HELP collecting CO2 over water?

Question

does anyone know a labratory setup that can be used to collect CO2 over water? The CO2 will be made using two solutions (Na2CO3) and (H2SO4). links would be great with pictures or a detailed explanation

Answer 1

The end is a glass jar filled with water inverted in a pan of water. There is a glass u-tube sticking one end into the jar, the other outside. There is rubber tubing connecting this glass tube to the CO2 generator. The generator may be a jar where Na2CO3 and H2SO4 solutions are mixed. There is a two-hole rubber stopper at the top. In both holes there are short lengths of glass tubing. A legnth of rubber tubing (the same one as before LOL) connects the generator bottle to the receiver bottle. The other short piece of glass tubing in the generator bottle is connected to a short piece of rubber tubing such that the rubber tubing can be shut off with a metal clamp.

Add the H2SO4 to the Na2CO3 solution and clamp off the tubing in the generator bottle. A vigorous reaction occurs. Gas flows through the rubber tube to the collection bottle. The gas collects in the upper part of that jar and pushes water down until the whole jar is filled with CO2.