Answer : The correct option is, 4.0 mole
Explanation : Given,
Moles of lithium = 12 mole
The given balanced chemical reaction is:
[tex]6Li+N_2\rightarrow 2Li_3N[/tex]
By the stoichiometry we can say that, 6 moles of Li react with 1 mole of [tex]N_2[/tex] to give 2 moles of [tex]Li_3N[/tex]
As, 6 moles of lithium react to give 2 moles of lithium nitride
So, 12 moles of lithium react to give [tex]\frac{12}{6}\times 2=4[/tex] moles of lithium nitride
Therefore, the number of moles of lithium nitride produced will be 4.0 mole.
