How many grams of H2 are needed to react with 2.60 g of N2?

Answer 1

Balanced equation is N₂ + 3H₂ ==> 2NH₃

moles of N₂ = 2.60 g x 1 mole/28 g = 0.0929 moles N₂

grams H₂ needed = 0.0929 moles N₂ x 3 moles H₂/mole N₂ x 2 g/mole = 0.557 g H₂ needed