Question

1. What mass of sodium nitride is required to produce 15.3g of nitrogen? 2Na₃N → N₂ + 6Na

2. What mass of oxygen will react with 14.4 g of ethane according to the following reaction? 2 C₂H₆ + 7 O₂ → 4 CO₂ + 6 H₂O

3. What mass of carbon dioxide will be produced from the complete reaction of 17.1 g of iron(III) oxide according to the following reaction? 2Fe₂O₃ + 3C → 4Fe + 3CO₂

4. What mass of iron(III) oxide is required to produce 16.4g of iron? 2Fe₂O₃ + 3C → 4Fe + 3CO₂

5. What is the maximum number of grams of NO (30.01 g/mol) that can be formed from the reaciton of 18.9 g of NH₃ (17.03 g/mol) with 24.9 g of O₂ (32.00 g/mol)? 4 NH₃(g) + 5 O₂(g) → 4 NO(g) + 6 H₂O(l)

Answer 1

1 mol N2 = 0.546 mol 1) Balanced equation: 2Na3N(s) —— 6Na(s) + N (8) No of moles of N, = 15.3 g ** 28.02 g Amount of NaN decomposed=0.546 mol N, 2 mol Na N 1 mol N, = 90.6 g 82.98 g 1 mol Na N