Question

Calculate the number of oxygen atoms if 18g of glucose is dissolved in 180g of water

Answer 1

The major components of the air are: Nitrogen - 78% Oxygen - 20% Argon - 0.93% Carbon dioxide - 0.031% Other gases such as Neon, Helium, Hydrogen etc, are present in trace amounts. The increasing order of the boiming points of the above gases is : Nitrogen (lowest) Argon Oxygen Carbon dioxide. Therefore, Carbon dioxide forms the liquid first as the air is cooled and nitrogen forms the liquid in the last.