N2 + 3H2 ==> 2NH3
mols H2 = grams/molar mass
Using the coefficients in the balanced equation, convert mols H2 to mols N2.
Now convert mols N2 to grams. g = mols x molar mass = ?
what mass of nitrogen gas is required to react completely with 2.79 of hydrogen gas to produce ammonia?
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