Using zero as your reference point, how much liquid has left the buret? Use the correct number of significant figures.
A) 20 mL
B) 22 mL
C) 22.0 mL
D) 38 mL
E) 38.0 mL

Question

Using zero as your reference point, how much liquid has left the buret? Use the correct number of significant figures. 
A) 20 mL 
B) 22 mL 
C) 22.0 mL 
D) 38 mL 
E) 38.0 mL

Quizplus · Accepted Answer

Since we are using zero as the reference point, the current reading on the buret is the volume of liquid that has left it. From the options provided, only option C (22.0 mL) has the correct significant figures. Option A and B have only one significant figure, which is not accurate enough. Option D and E have three significant figures, which exceeds the level of accuracy that can be achieved with a buret.

Using Zero as Your Reference Point, How Much Liquid Has