1.3 Chemical Calculation Flashcards
1
Q
What is relative atomic mass
A
average mass of 1 atom of an element compared to 1/12th the mass of an atom of carbon-12
2
Q
why might actual yield be less than expected
A
- incomplete reaction
- unwanted side reactions
- some solid may be lost when transfering between beakers
3
Q
how do you calculate atom economy
A
(mr of desired product / mr of all reactants) x100
4
Q
why is higher atom economy better
A
is is more sustainable and efficient
5
Q
how is % error calculated
A
(apparatus accuracy / calculated value) x100
6
Q
A
