Question

In an activity to prove that carbon dioxide is necessary for photosynthesis,

what is the purpose of using vaseline and potassium hydroxide?​

Answer 1

Answer:

Activity: To show that carbon dioxide is necessary for photosynthesis

Answer 2

Answer:

The potassium hydroxide is used to absorb CO2. Use vaseline to seal the bottom of the jars to the glass plates so that the set-up is air-tight.