The density of a liquid is determined by successively weighing 25,50,75,100,and 125 mL of the liquid in a 250-mL beaker.
-If volume of liquid is plotted along the horizontal axis,and total mass of beaker plus liquid is plotted on the vertical axis:

Question

Quizplus · Accepted Answer

The y-intercept represents the weight of the empty beaker, as this is the weight recorded when there is no liquid in the beaker. Weighing the beaker with the liquid inside will give the total mass of the beaker plus the liquid. Therefore, the weight of the empty beaker can be found by extrapolating the line back to the y-axis.

Answer: E
 The slope of the line is determined by the density of the liquid, which is a physical property independent of the quantity of liquid being measured. Therefore, the slope of the line is independent of the identity of the liquid.

The Density of a Liquid Is Determined by Successively Weighing