Suppose a chemist has chosen 10^(20) as the number of particles in a mole. What would be the molecular mass of oxygen gas ?

Suppose a chemist has chosen 10^(20) as the number of particles in a m

1.	Suppose a chemist has chosen 10^(20) as the number of particles in a mole. What would be the molecular mass of oxygen gas ?
Answer» Solution :`6.022 xx 10^(23)` molecules of OXYGEN WEIGH = 32 g 1.0 MOLECULE of oxygen weighs `= (32)/(6.022xx10^(23))=5.31xx10^(-23)g` `:.` Mass of `10^(20)` molecules of oxygen `= 5.31 xx 10^(-23) xx 10^(20) = 5.31 xx 10^(-3)g`.