atom economy and percentage yield Flashcards
1
Q
atom economy
A
the mass of product you want as a % of the mass of all the products you make
2
Q
why is a high atom economy important?
A
more economic
more sustainable
3
Q
yield
A
amount of product you get
4
Q
what effect does more reactants have on the yield?
A
it is higher
5
Q
why is a high yield important?
A
to reduce waste
to reduce costs
6
Q
list 3 problems that can decrease the yield
A
-not all reactants react
-there might be side reactions (e.g with air/impurities)
-some of the products may be lost
7
Q
list 4 other factors than atom economy that should be considered when choosing between methods of producing a useful product
A
-percentage yield
-cost of raw materials
-rate of reaction
-environmental impact of waste products
