[tomgreenschic]

What affect would air bubbles being introduced into a eudiometer have in this situation?
 I am trying to determine the universal gas constant by reacting magnesium in a eudiometer filled with water and HCl. When the eudiometer it inverted and placed in a large graduated cyclinder full of water, what would happen if air bubbles got into the eudiometer. Would it make the volume of the gas (assumed to be only H2) increase? If so, this would increase the result of the universal gas constant, R, correct?
Thanks so much.

[ARGOS++]

Dear tomegreenschic;

Bring the bubbles to the top and make a correct “Null”- reading after installing the eudiometer and before you start the experiment, then you will have it compensated, because gas volumes are additive.

Good Luck!
                    ARGOS⁺⁺