What does the Atom Economy tell you? | -This simply tell you what the Percentage of the Mass of the Reactants is Converted to the Product you only Want. |
What is the Formula of Atom Economy? | -Atom Economy - Total Mr of Desired Products / Total Mr of All Products x 100 |
What does it mean if the Atom Economy is 100%? | -This means All the Atoms in the Reactants have gone into that 1 Product which you Only Want. This means No Waste |
Hydrogen Gas can be made in an Industrial Way, by Reacting Natural Gas [Methane] with Steam
CH₄ + H₂O --> CO + 3H₂
-What is the Atom Economy for this Reaction? | -First, find the Mr of all the Products:
-CO = 28 3H₂ = 6 28 + 6 = 34
-Second, find the Mr of just the Desired Product [Hydrogen Gas]
-Its 6
-Now, use the Formula to get the Atom Economy
-[6/34 x 100 = 18% |
Why are Low Atom Economy Reactions bad? | -This is because of the fact they use Resources up quickly, in which a lot of Waste is made that has to be Disposed of, making the Reaction Unsustainable
-Also, they usually don't Bring Profit in, because Raw Materials can be Expensive, and Waste Products need Money to be Managed and Removed |
What can be done with the Waste Products? | -They can be used to make 'by-products' which is another way to make a Desired Product, or another Product which is Useful |
What other Factors are there in Industry Production? | -Percentage Yield, helps with Waste and Cost
-Rate of Reaction, has to be Fast Enough to get the Amount of Product in the Amount of Time you can Afford
-If the Reaction is Reversible, as because then the Reaction Conditions might need to be altered- very Expensive to do so |