Answer:
Mass = 3.752 g
Explanation:
Given data:
Number of moles of Li = 0.536 mol
Mass of N₂ needed = ?
Solution:
Chemical equation:
2Li + N₂ → 2LiN
Now we we will compare the moles of Li and N₂.
Li : N₂
2 : 1
0.536 : 1/2×0.536 = 0.268 mol
Mass of N₂
Mass = number of moles × molar mass
Mass = 0.268 mol × 14 g/mol
Mass = 3.752 g
