what is the role of kOH in the experiment of realease of carbon dioxide during respiration?why do we use germinating seeds in this experiment
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KOH is a good absorbent.
KOH absorbs the carbon dioxide released by the germinating seeds and a partial vacuum is created because of the loss of carbon dioxide in the flask.
This vacuum causes the water level in the delivery tube to rise up.
Germinating seeds are used because they use up the oxygen in the flask to respire and release carbon dioxide as a result, which is absorbed by KOH, causing the weight of KOH to increase.
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Potassium hydroxide is used in this experiment played the role of absorbtion of carbon-dioxide from the plant surrounding. This is done so as to remove all carbon-dioxide from the jar or from the surrounding where pmnat is placed.
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