kinetics - uncertainty Flashcards
1
Q
What is experimental error?
A
the difference between a measurement and the value or between two measured values.
2
Q
what is uncertainty?
A
An estimate attatched to a measurement which characterises the range of values within which the true value lies .
3
Q
How to get the uncertainty of a measuring equipment?
A
half a division either side of the smallest unit on the scale
4
Q
How to combine errors with burrette?
A
Final - initial
add the uncertainties
5
Q
What is accuracy?
A
Measures how close a measured value is to the true value of accepted value.
6
Q
What is precision?
A
how closely two or more measurement agree with each other. (repeatability)
7
Q
How to calculate percentage uncertainty
A
percentage uncertainty = uncertainty/reading x 100
8
Q
Calculation for experimental error
A
9
Q
A
