Given a mass of #8*g# of oxygen gas, what is the molar quantity?

1 Answer
Sep 9, 2017

Answer:

Approx. #0.25*mol#...............with respect to dioxygen gas.....

Explanation:

You must simply know that oxygen, as are most of the elemental gases, certainly those that have any chemistry, is a BINUCLEAR gas, i.e. #O_2#....

And so we take #"mass"/"molar mass"# to get an answer in moles....

#(8*g)/(32.0*g*mol^-1)=1/4*mol#

How many oxygen atoms in this mass?