Question

Consider the following reaction that occurs at STP:what mass of N2 gas is needed to react with 12g H2 gas?

Answer 1

N2 + 3H2 ==> 2NH3

mols H2 = grams/molar mass = ?
Using the coefficients in the balanced equation, convert mols H2 to mols N2.
g N2 = mols N2 x molar mass N2 = ?