3 Si + 2 N2 →Si3 N4 How many grams of Si3 N4 can be produced from0.46 moles of N2

Answer 1

Hello, Kevin,

We'll assume there is enough silicon to react with all of the nitrogen. The equation tells us we should obtain 1 mole of Si₃N₄ from 2 moles of N₂, a ratio of 1/2. If we react all of the 0.46 moles of N₂, we should expect half that, or 0.23 moles of Si₃N₄. Convert that to grams by multiplying by the molar mass of Si₃N₄.

(0.23 mole)(140.3 g/mole) = 32.3 grams of Si₃N₄.

Bob