To the correct number of significant figures,what is the volume of the liquid in the graduated cylinder?
A)7 mL
B)7.0 mL
C)7.7 mL
D)8 mL

Question

To the correct number of significant figures,what is the volume of the liquid in the graduated cylinder? 
A)7 mL 
B)7.0 mL 
C)7.7 mL 
D)8 mL

Quizplus · Accepted Answer

The graduated cylinder has markings at every 0.1 mL interval. The liquid level is between the 7 mL and 7.1 mL marking, so we can estimate the volume to be closer to 7 mL than 8 mL, thus choosing an answer with one decimal place (i.e. 7.0 mL) is the best choice. Choosing 7.7 mL or 8 mL would both be too imprecise and not a correct representation of the estimated volume.

To the Correct Number of Significant Figures,what Is the Volume