1. In the formation of carbon dioxide from carbon monoxide and oxygen, how many grams of carbon monoxide are needed to react completely with 16 grams of oxygen gas?
2 CO (g ) + O2 (g ) → 2 CO2 (g )
2. How many grams of carbon dioxide, CO
2 , can be formed by the decomposition of 117 grams of aluminum carbonate, Al
2 (CO
3 )
3 ?
Al2 (CO3 )3 → Al2 O3 + 3 CO2
3. In the formation of carbon dioxide from carbon monoxide and oxygen, how many grams of carbon dioxide are produced by the reaction of 8 grams of oxygen with an excess of carbon monoxide?
2 CO (g ) + O2 (g ) → 2 CO2 (g )
4. How many grams of oxygen are required to burn 60 grams of ethane gas, C
2 H
6 ?
2 C2 H6 (g ) + 7 O2 (g ) → 4 CO2 (g ) + 6 H2 O (g )
5. How many grams of carbon dioxide are produced by the decomposition of 53 grams of sodium carbonate, Na
2 CO
3 ?
Na2 CO3 → Na2 O + CO2
6. A chemist performs the synthesis of sodium fluoride from its elements. The chemist begins with 46 grams of sodium. How many grams of fluorine are needed?
2 Na + F2 → 2 NaF
7. How many grams of water can be prepared from 10 grams of hydrogen and an excess of oxygen?
2 H2 (g ) + O2 (g ) → 2 H2 O
8. Suppose that an excess of propane, C
3 H
8 burns in 320 g of O
2 . How many grams of H
2 O will be formed?
C3 H8 + 5 O2 → 3 CO2 + 4 H2 O
9. How many grams of carbon dioxide, CO
2 , will be formed by the combustion of 11 grams of propane, C
3 H
8 ?
C3 H8 + 5 O2 → 3 CO2 + 4 H2 O
10. Ammonia, NH
3 , is commercially prepared by the Haber process. How many grams of ammonia can be formed from 12 grams of hydrogen gas and an excess of nitrogen?
3 H2 (g ) + N2 (g ) → 2 NH3 (g )
11. How many grams of hydrogen, H
2 , are needed to react with 84 grams of nitrogen gas in the reaction forming ammonia?
3 H2 (g ) + N2 (g ) → 2 NH3 (g )
12. How many grams of water can be prepared from 8 grams of hydrogen and an excess of oxygen?
2 H2 (g ) + O2 (g ) → 2 H2 O
13. How many grams of carbon dioxide are produced by the combustion of 30 grams of ethane gas, C
2 H
6 ?
2 C2 H6 (g ) + 7 O2 (g ) → 4 CO2 (g ) + 6 H2 O (g )
14. How many grams of oxygen are required to react with 30 grams of glucose, C
6 H
12 O
6 ?
C6 H12 O6 (s ) + 6 O2 (g ) → 6 CO2 (g ) + 6 H2 O (g )
15. How many grams of calcium must react with of sulfuric acid, H
2 SO
4 , in order to produce 4 grams of hydrogen gas?
Ca + H2 SO4 → CaSO4 + H2
16. How many grams of calcium will react with 64 grams of oxygen gas in the reaction shown below?
2 Ca + O2 → 2 CaO
17. A certain amount of glucose, C
6 H
12 O
6 burned in oxygen, and produced 22 grams of carbon dioxide, CO
2 . How many grams of water was produced at the same time?
C6 H12 O6 (s ) + 6 O2 (g ) → 6 CO2 (g ) + 6 H2 O (g )
18. How many grams of oxygen are required to react completely with 56 grams of carbon monoxide, CO?
2 CO (g ) + O2 (g ) → 2 CO2 (g )