Volume measurements will be made using a 25 mL graduated cylinder, which has major scale divisions marked every 2 mL and minor scale division every 0.2 mL.
What is the estimated uncertainty iin the volume measurements?
1 Answer | Add Yours
The uncertainty of a measurement is the extent to which the actual value may differ from the measured value.
This can be written as: measurement = best estimate +/- uncertainty
Here, volume measurements are being made using a 25 mL graduated cylinder which major scale divisions marked every 2 mL and minor scale divisions marked every 0.2 mL.
If a volume measurement is made using the cylinder and the value turns out to be X mL, it can be said with certainty that X lies between X + 0.2 mL and X - 0.2 mL. The uncertainty in measurements cannot be less than the smallest value that can be measured.
The uncertainty in the volume measurements made is 0.2 mL
We’ve answered 318,916 questions. We can answer yours, too.Ask a question