What does this mean and what we have to do in this question explain What does this experiment above the comparative speeds with which the ammonia and hydrogen molecules move?

What does this mean and what we have to do in this question explain

1.	What does this mean and what we have to do in this question explain What does this experiment above the comparative speeds with which the ammonia and hydrogen molecules move?
Answer» The ring usually forms NEARER to the hydrochloric acid end of the tube because hydrogen chloride diffuses more slowly than AMMONIA. This is because hydrogen chloride has almost twice the MOLECULAR weight of ammonia, and the rate of DIFFUSION is inversely proportional to the square root of the molecular mass of the gas.