Question

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?

Answer 1

Co2 will dissolve in water if water is saturated with Co2 first then it will absorb some of CO2 it appear as less is absorb that was actually the case . this would make it appear as present of CACO3 is in original sample is lower than it will be too low