How many moles of nitrogen in a mass of #14*g# of dinitrogen gas?

1 Answer
Jul 19, 2017

Answer:

Well, you got half a mole of dinitrogen gas........

Explanation:

All we do is solve the quotient,

#"Number of moles"="Mass of stuff"/"Molar mass of stuff"#,

we know that dinitrogen is a diatomic gas, with a molar mass of #28.0*g# (in fact ALL of the element gases, save the Noble Gases are diatomic)....

And #"no. of moles"-=(14.0*cancelg)/(28.0*cancelg*mol^-1)=0.50/(1/(mol))=0.50*mol#.

And the given quotient gives us an answer in #mol# as required.

How many nitrogen ATOMS do we have in this molar quantity?