Stoichiometry

  1. When ferric carbonate is treated with hydrochloric acid, ferric chloride, CO2, and water are formed. How many grams of ferric chloride are formed when:
    1. 2.5 g of ferric carbonate are consumed?
    2. 2.5 g of ferric carbonate is treated with 10 mL of 0.1 M HCl?
    3. 0.25 mole of CO2 is formed?
    4. 2.5 g of ferric carbonate is treated with 100 mL of 1 M HCl and the reaction goes 35% to completion?
  2. In the reaction of C2H2 with O2 to form CO2 and water, how many liters of CO2 at 100 °C and 100 torr will be formed by the complete combustion of 0.10 mole of C2H2?
  3. A sample of brass is analyzed by dissolving a 1.00 g sample and then precipitating 0.243 g of CuO. What is the percent copper in the sample?
  4. Methyl iodide (CH3I) reacts with water to form methanol (CH3OH) and HI. If the reaction has a 25 % yield, how much methyl iodide must be added to water in order to produce 0.10 mole of methanol?