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What is the relationship between CO2 concentration and the acidity of the cells kept in the CO2 incubator?

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1. H2O + CO2 <--> H2CO3 <--> HCO3 + H As you can see from the about equation, CO2 combines with water to form carbonic acid,which dissociates into bicarbonate ion and hydrogen ion. When the CO2 concentration is high, the medium becomes acid.