1. Calcium carbonate decomposes into calcium oxide and carbon dioxide. Determine the mass of calcium oxide and carbon dioxide produced if 235g of calcium carbonate is heated.
2. When propane is burned in oxygen, carbon dioxide and water are the products. If 3.25 liters of propane are burned, how many moles of water are produced? What is the mass of that amount of water?
3. Sodium reacts vigorously with 127.8g of chlorine gas to form table salt. What is the mass of salt that is produced?
4. Car batteries use lead and lead(IV) oxide with sulfuric acid to produce current. Lead(II) sulfate and water are the products. What is the mass of lead(II) sulfate produced when 88.3g of lead reacts with an excess of lead(II) oxide and sulfuric acid?
5. Calculate the mass of sodium chloride when 5.50 moles of sodium reacts in excess chlorine gas.
6. Carbon dioxide gas is removed from spacecrafts by reacting with lithium hydroxide. Lithium carbonate and water are the products. How many moles of lithium hydroxide would be required to maintain two astronauts for three days if each astronaut exhales 20 moles of carbon dioxide per day?
7. Potassium chlorate breaks down into potassium chloride and oxygen gas. How many moles of oxygen gas are produced from 10 moles of potassium chlorate?
8. This is the reaction that occurs in plants undergoing photosynthesis:
CO2 + H2O --> C6H12O6 + O2
How many grams of glucose are produced when 24 moles of carbon dioxide reacts in excess water?
9. How many grams of magnesium sulfate (MgSO4) are needed to react with 22.5 grams of sodium hydroxide (NaOH) to form magnesium hydroxide and sodium sulfate?
10. Potassium chlorate breaks down into potassium chloride and oxygen gas. How many moles of oxygen gas are produced from 30 moles of potassium chlorate? What is the mass of that amount of oxygen gas?
11. Calculate the mass of chlorine gas when 100 grams of sodium chloride breaks down.
12. If 38 moles of propane is burned in excess oxygen, with water and carbon dioxide as products, how many moles of water is produced?