Maths

Question 1

How do you calculate percentage error?

Answer 1

(Total error ÷ total recording) X 100

Question 2

How do you calculate percentage error of two measurement values taken from different equipment with different uncertainties?

Answer 2

(addition of uncertainties) ÷(addition of measurements) X100

Question 3

Why does qualitative data improve repeatability?

Answer 3

Allow comparison of values to see if they are similar

Question 4

Describe the approach to graph analysis questions

Answer 4

General trend
Specifics
Consider all data
Apply theory
Any criticism

Question 5

What formula is used for a dilution series?

Answer 5

C1 X V1= C2 X V2

C is concentration
V is volume

1 is of standard/stock solution

2 is of new solution