Posted by kristy on .
How many grams of H2 are needed to produce 10.75g of NH3?
N2 + 3H2 ==> 2NH3
mols NH3 = grams/molar mass
Using the coefficients in the balanced equation, convert mols NH3 to mols H2.
Now convert mols H2 to grams. g = mols x molar mass