Magnesium reacts with ammonia, NH3, at high temperatures to produce solid magnesium nitride, Mg3N2, and hydrogen.
How many grams of magnesium react with 56,400 mL (STP) of ammonia?
3Mg(s) + 2NH3(g) ? Mg3N2(s) + 3H2(g)
answer choices:
11.6 g
26.7 g
91.8 g
22.9 g
19.6 g