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

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Answer 1 · 2017-07-19T09:32:22

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

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?

How many moles of nitrogen in a mass of 14*g14*g of dinitrogen gas?