How would you show that exhaled air has more carbo dioxide than inhaled air
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Exhaled Air contain more CO2. Just take a beaker with distilled water in it. You need a pH meter and a straw.Measure the pH of water through pH meter. Enter the straw into distilled water and blow air(Exhale) through straw into water for some time. Then remove straw and further measure pH of the water, you will found the pH value of water decreases as CO2 dissolve in water and produces little amount of Carbonic acid.
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