PLEASE PLEASE help chemistry?

Question

This is an experiment question..
suppose the water for the pan is not saturated with CO2. Will the reported percent CaCO3 in the original sample be too high, too low or unaffected...explain.....thanks

I say to low but im not sure

Answer 1

Its hard to answer these questions when we don't know the procedure for the laboratory experiment you're asking about.

I am having to guess that the lab wants you to collect the CO2 evolved from reaction of a CaCO3-containing material with an acid by letting it bubble into an inverted, water-filled vessel in a tray of water. CO2 will dissolve in water, so if the water is not saturated with CO2 first, it will absorb some of the CO2 which you created and make it appear as if less were evolved than was actualy the case. This would make it appear as if the percent CaCO3 in the original sample was lower than it really is.