More Stoichiometry Precent Yield Problems

2 CuO_(s) + 1 C_(s) --> 2 Cu_(s) + 1 CO_2(g)














2) Excess Hydrogen gas reacts with 44.3L of Nitrogen gas (@STP) to produce Ammonia via the following reaction.

1 N_2(g) + 3 H_2(g) --> 2 NH_3(g)

If 52.4g of Ammonia was produced, what is the theoretical/stoichiometric yield and percent yield of Ammonia.

















3) One reacts 35.4g of Aluminum metal with excess Sulfuric acid (H₂SO₄) to produce Aluminum sulfate and Hydrogen gas. If it was determined that one collected 36.8L of the Hydrogen gas (@STP), what is the theoretical/stoichiometric yield and percent yield of Hydrogen gas?
2 Al_(s) + 3 H₂SO_{4 (aq)} --> 1 Al₂(SO₄)_{3 (aq)} + 3 H_{2 (g)}
















4) 79.3g of elemental oxygen gas reacts with excess elemental hydrogen gas to produce water via the following synthesis reaction
2 H_{2 (g)} + 1 O_{2 (g)} --> 2 H₂O_(g)
It was found that experimentally, 57.3g of water was produced. What is the theoretical/stoichiometric yield and percent yield of water.


















Answer:
1) 1.17g, 57.1%
2) 67.2g, 78.0%
3) 44.1L, 83.4%
4) 89.2g, 64.2%