3.2 Amount of substance

Question 1

why do we want a high atom economy

Answer 1

-reduces amount of unwanted products
-sustainable process
-maximises proffit

Question 2

what is the equation for atom economy

Answer 2

Mr of desired product / Mr of all reactants
x100

Question 3

what is the equation for percentage yield

Answer 3

actual yield/ theoretical yield
x100

Question 4

what is percentage yield?

Answer 4

tells you how much product you’ve made

Question 5

what is the theoretical yield

Answer 5

sum that is expected from the reaction

Question 6

what does a percentage yield of 100% mean

Answer 6

no products have been lost

Question 7

what are reasons as to why the actual yield is lower than the theoretical?

Answer 7

LOSS:
filtering
transferring liquids
evaporating
not all reactants made into products

Question 8

why is percentage yield important

Answer 8

determines the efficinecy of reaction

Question 9

what is atom economy

Answer 9

measures the amount of products that are useful

Question 10

what does an atom economy of 100% mean

Answer 10

there are no wasted products