Which choice best describes the degree of uncertainty in the measurement 4.0032 g?
A)The uncertainty cannot be determined without additional information.
B)The quantity is exact.
C)The measurement is between 4.002 and 4.004 g.
D)The measurement is between 4.0031 and 4.0033 g.
E)The measurement is between 3.99 and 4.01 g.

Question

Quizplus · Accepted Answer

The measurement has five significant figures, so the uncertainty can be estimated as the uncertainty of the last digit, which is ±0.0001 g. Therefore, the measurement is between 4.0031 and 4.0033 g.

Which Choice Best Describes the Degree of Uncertainty in the Measurement