Fred Senese · Dept. of Chemistry · Frostburg State University
Introduction to Measurements and Uncertainty
- Measurement and Uncertainty Measurements are inherently uncertain; the last figure of a properly recorded measurement is just an estimate.
- Uncertainty in Length Measurements
- Uncertainty in Temperature Measurements
- Uncertainty in Volume Measurements from a Graduated Cylinder
- Exact Numbers
- Significant Figures are the digits in a measurement up to and including the estimated digit.
- Counting Significant Figures
- Moving the decimal point doesn't change the number of significant figures.
- A procedure for counting significant figures.
- When are zeros significant figures?
- Rounding to the Correct Number of Significant Figures
- Counting significant figures for a series of measurements