If a mole were to contain 1 xx 10^24 particles, what would be the mass of - (i) one mole of oxygen, and (ii) a single oxygen molecule?

If a mole were to contain 1 xx 10^24 particles, what would be the mass

1.	If a mole were to contain 1 xx 10^24 particles, what would be the mass of - (i) one mole of oxygen, and (ii) a single oxygen molecule?
Answer» Solution :Mass of 1 MOLE of `O_(2)`is its molecular weight in g, i.e. 32 g `THEREFORE` mass of a single `O_(2)` molecule `=("mass of 1 mole")/("no. Of molecules in 1 mole")` `=32/(1 xx 10^(24)) = 3.2 xx 10^(-23)` g