Question

(4Ga + 3S2 → 2Ga2S3)

1. How many moles of Sulfur are needed to react with 12.5 moles of Gallium

Answer 1

9.375

Step-by-step explanation:

According to the chemical equation, for every 4 moles of gallium, 3 moles of sodium are needed to react. Set up a ratio using this relationship to solve.

4/3 = 12.5/x

4x = 37.5

x = 9.375

You need 9.375 moles of sulfur.