posted by danni .
determine the number of grams of NH3 produced by the reaction of 3.5g of hydrogen gas.
1. Write the equation and balance it.
N2 + 3H2 ==> 2NH3
2. Convert 3.5 g H2 gas to mols.
mols = grams/molar mass.
3. Convert mols H2 gas to mols NH3 using the equation from step 1.
4. Convert mols NH3 to grams NH3.
grams = mols NH3 x molar mass NH3.
Post your work if you get stuck.