C4.5 -Atom Economy (Finished)

Question 1

What is the equation for atom economy?

Answer 1

Atom economy = relative formula mass desired / relative formula mass of all reactants * 100

Question 2

What does 100% atom economy mean?

Answer 2

All the reactants have been turned into useful products

Question 3

What does atom economy tell you?

Answer 3

How much of the mass of the reactant is wasted when making a product and how much ends up as useful products

Question 4

How do you calculate atom economy from an equation?

Answer 4

1) Identify the desired product
2) Work out the Mr of All the reactants
3) Work out the total Mr of the desired product
4) Use the formula to calculate atom economy

Question 5

What is the solution to having a low atom economy?

Answer 5

Finding a way to use the waste products, come up with a reaction that gives useful “by-products”

Question 6

Why are low atom economies a problem?

Answer 6

• A lot of waste is produced which has to be disposed of
• Reactions use up resources quickly
• They are not profitable
• Using up the earth’s resources