Lab 3.5: The Density Of Solids

The Purpose of lab 3.5 The Density of Solids was to use density to determine if the slab is the same substance as one of the cubes. In order to do so, the mass of each of the two cubes, and the slab were taken, and the dimensions of each were accurately measured. The dimensions were multiplied to find the volume, and the volume and mass were then used to find a comparable value, the density of each object. The mass and volume of an irregularly shaped stone were then found, and from this, the density of the stone was calculated. The density of the dot cube and slab were within the same margin, and therefore are made from the same substance. The cube without the dot had a much greater density. The stone was within also the margin of the slab, though the two are obviously not made from the same substance.
The experiment involved finding the volume of the two cubes, the slab, and the stone. The cubes and slab were regular shapes, and therefore the volume could be found by multiplying the dimensions together. The stone, however, was irregularly shaped, and the volume was therefore found by …show more content…
Because of this margin, any values within 0.2 g/cm3 of one another are considered the same. Once the mass and volume of each object were known, the density was calculated by dividing the mass by the volume. The density of an object describes the substance which an object is made of. Because of this, density can be used to determine whether objects are made from the same substance or not. The density of the dotted cube was 2.97 g/cm3 and the density of the dot cube was 2.8 g/cm3. These values are within 0.2 g/cm3 of each other, and are therefore considered the same value. In contrast, the density of the cube was 8.29 g/cm3.From the data recorded in the experiment and the calculations made using the data, it can be concluded that the dot cube and the slab are made from the same