Yield Percentage Flashcards
1
Q
How can we calculate % yield
A
(mass made/predicted mass to be made)
2
Q
What does a low % yield show
A
poor technique
3
Q
What often happens in reactions with gases as a product
A
gas is very easily leaked out so could decrease %yield
4
Q
What factor regarding the reaction could cause % yield to be incorrect
A
reaction could be incomplete —> reversible reaction extremely prone to this
5
Q
What can you do in experiments to avoid %yield errors
A
heat to constant mass
6
Q
What are the 5 overall potential factors to %yield errors
A
gas leak
incomplete reaction
impure raw material
impurities cause alternative side reactions
apparatus error
