Add approximately 10 pellets, and record the new volume after the addition. To measure the density of a sample of a substance, it is necessary to measure its mass and volume.
Note that, since the measurements were made in a graduated cylinder, which is less precise than a volumetric flask, the density has lower degree of precision.
Most solid substances are irregularly shaped, which complicates volume determination. For both solids and liquids, a balance can be used to measure mass; however, methods for determining volume are different for solids and liquids.
This will allow the students to observe the effect that time has on the layers. Add another mL of distilled water to the graduated cylinder.
Part C: Graphical Analysis of Mass and Volume Data of an Unknown Solid Check out a ruler from the stockroom and obtain a tube containing cylindrical pieces of an unknown solid material from your instructor. For best results, repeat steps 2.
This is because if there is no mass, the volume must also be zero. Again, start with the smallest object first and progress in order of increasing object size.
Repeat step 3 to obtain a third set of mass and volume measurements. All matter has mass, and that mass occupies a specific volume.