22:Percentage Yield and atom economy Flashcards
1
Q
What reasons are there for why the amount of product recovered is less than expected
A
The reaction may not have gone to completion.
There might have been side reactions which take away some of the reactants.
Some products may have been lost during purification
2
Q
How to calculate % yield
A
% Yield = actual moles of product / theoretical moles of product x100
3
Q
How to calculate atom economy
A
Atom economy = Mr of desired product / sum of Mr of all products x 100
4
Q
What is the atom economy of an addition reaction
A
100% as there is only one product
5
Q
When can atom economy be 100%
A
If there is only 1 product or if all products are useful
