How many significant figures are in the following measurement: 68.99 mL
Chemistry · High School · Tue Nov 03 2020
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In identifying how many significant figures a number have, there are rules that must be understand.
- 1. Any digit that is not zero is significant.
2. Zeros between nonzero digits are significant.
3. Zeros to the left of the first nonzero digit are not significant.
4. If a number is greater than 1, then all the zeros written to the right of the decimal point count as significant figures.
5. For numbers that do not contain decimal points, the trailing zeros (that is, zeros after the last nonzero digit) may or may not be significant. By using scientific notation, we can show the proper number of significant figures. For example, we can express the number 400 as 4 x 10^2 for one significant figure
Given the measurement: 68.99 mL
It contains 4 significant figures.