To determine the moles of lithium nitride produced, we need to know the stoichiometry of the reaction.
For example, if the reaction is:
6 Li + N₂ → 2 Li₃N
We can use the mole ratio from the balanced equation to determine the moles of lithium nitride produced:
* 6 moles of Li react to produce 2 moles of Li₃N
Therefore, to find the moles of Li₃N produced from 0.750 moles of Li, we can set up a proportion:
(6 moles Li / 2 moles Li₃N) = (0.750 moles Li / x moles Li₃N)
Solving for x, we get:
x = (0.750 moles Li * 2 moles Li₃N) / 6 moles Li
x = 0.250 moles Li₃N
Without the complete reaction, I cannot provide a specific answer. Please provide the balanced chemical equation.