Answer:
26.899 g of Li
Solution:
The Balance Chemical Equation for given reaction is as follow;
6 Li + N₂ → 2 Li₃N
According to equation,
69.66 g (2 mol) Li₃N is produced by = 41.64 g (6 mol) of Li
So,
45.0 g of Li₃N will be produced by = X g of Li
Solving for X,
X = (45.0 g × 41.64 g) ÷ 69.66 g
X = 26.899 g of Li
Hence, 26.9 g of Lithium is required to produce 45.0 g of Lithium Nitride.