Throughout Chemistry 2, the proper number of significant figures must be used in all
laboratory reports and on all examinations.
Failure to do so will result in the loss of credit.
For more practice with significant figures go to
web.mst.edu/~gbert
All non-zero digits are significant, for example, 123 has three significant figures, 230 has two significant figures, and 300 has one significant figure.
Zeros between non-zero digits are
significant, for example, 12.507 has five
significant figures.
Zeros to the left of the first non-zero
digit are not significant, for example, 1.02 has three significant figures, 0.12 has two significant figures, and 0.012 also has two significant figures.
If a number ends in zeros to the right
of the decimal point, those zeros are significant, for example, 2.0 has two significant figures and 2.00 has three significant figures.