Question

The chemical generally used to absorb CO2 in respiratory experiments.​

Answer 1

Answer:

Potassium Hydroxide

Explanation:

Carbon dioxide is acidic in nature and potassium hydroxide is a strong base. Hence, carbon dioxide reacts with potassium hydroxide to form potassium carbonate and water as 2KOH + CO2 ---> K2CO3 + H2O Thus, the mass of the U-tube containing KOH increases.

Answer 2

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