Maths Flashcards
1
Q
How do you calculate percentage error?
A
(Total error ÷ total recording) X 100
2
Q
How do you calculate percentage error of two measurement values taken from different equipment with different uncertainties?
A
(addition of uncertainties) ÷(addition of measurements) X100
3
Q
Why does qualitative data improve repeatability?
A
Allow comparison of values to see if they are similar
4
Q
Describe the approach to graph analysis questions
A
General trend Specifics Consider all data Apply theory Any criticism
5
Q
What formula is used for a dilution series?
A
C1 X V1= C2 X V2
C is concentration
V is volume
1 is of standard/stock solution
2 is of new solution