Atom Economy

• What is the main aim of the reaction discussed in the study material?

  To make hydrogen
• What is the significance of waste products in industrial processes?

  They indicate inefficiency in product formation
• How do companies quantify waste products in reactions?

  By calculating the atom economy
• What does atom economy measure?

  The efficiency of converting reactants to useful products
• What is the formula for calculating atom economy?

  Relative mass of desired products / Total mass of reactants × 100
• What is the relative formula mass (mr) of hydrogen?

  $2$
• What is the relative formula mass (mr) of carbon monoxide?

  $28$
• What is the relative formula mass (mr) of water?

  $18$
• What is the atom economy of the reaction producing hydrogen?

  $4.35\%$
• Why is an atom economy of $4.35\%$ considered low?


  Only a small percentage of reactants are useful
• What is the atom economy of a reaction that produces only ammonia?

  100%
• Why is it important to consider atom economy?

  To improve profitability and sustainability
• What is one reason why raw materials should be efficiently used?

  They are expensive
• What is a consequence of using large quantities of reactants?

  It is less sustainable
• What can be a problem with waste products?

  They can be expensive to dispose of
• What is a solution to reduce waste products?

  Use a more efficient reaction
• What is a benefit of finding uses for waste products?

  They can become useful by-products
• What are other factors to consider for reaction profitability?

  Percentage yield, raw material costs, equilibrium
• What is one factor that affects the cost of maintaining reactions?

  Temperature
• What is another factor that affects the cost of maintaining reactions?

  Pressure
• What should you do if you found the material useful?

  Like and subscribe