Percentage Yield

Question 1

What are the two different types of yield ?

Answer 1

Actual yield- amount we actually get
Theoretical yield- yield we’d expect to get

Question 2

What are the three reasons why we might not make as much product ?

Answer 2

1. Reactions might not all react- some of the mixture will still be reactants (can happen in slow reactions and reversible ones)
2. Side reactions- reactants react to produce a different procure than the one expected
3. Loosing some product during a reaction- if the products are gases

Question 3

What is the calculation for percentage yield ?

Answer 3

Actual yield over theoretical yield
Then multiplied by 100 to give a percentage

Question 4

What is a good thing to remember with yeild ?

Answer 4

If you calculate the yeild it should never give you an answer of above 100