C14- Quantitative Analysis Flashcards
What’s theoretical yield
The expected yield - maximum amount of product that can be formed from that reactant
Calculated from the balanced equation
What’s the actual yield
The product obtained when you actsully carry out the experiment
How do you calculate percentage yield
It compare the actual yield to the theoretical yield
Actual yield divided by theoretical yield X 100
Why are the yields less than expected
The reaction could be incomplete so not all reactant used up
Some product is lost eg spillage
Unwanted side reactions taking place - some reactants may make a different product - side reactions compete with the main reaction
What does the higher the percentage yield mean
The more useful the reaction is - a high yield means fewer raw materials are used to make the Same amount of product
So there less waste and more profit
