Past Paper Questions Flashcards
1
Q
Purpose of Bunsen valve at end of delivery tube
A
Prevent water from entering delivery tube from water bath
2
Q
Reason for having boiling tube at certain angle in decomposition
A
Prevent heating of certain reactant/ mixing of reactant and catalyst
3
Q
Benefit of using solid catalyst
A
More easily separated from reactants
4
Q
Where does water go in and out of reflux condenser
A
Water in at bottom and out at top
5
Q
How does starch show colour change
A
With slight excess of iodine will form complex with starch which is blue-black, from pale yellow
6
Q
What is inverse of ln
A
e to the power of
7
Q
How to find relative abundances for mass spectrum
A
Divide percentages by smallest one to find ratio
