8Density is the ratio of mass to volume, the unit of density for solid or liquid in the metric system is measured in g/ml or g/cm^3. Mass is the amount of matter in a particular object, the unit of measurement for the mass of an object is represented in kilogram (kg) or gram (g). Volume is the certain amount of space occupied by an object, the unit of measurement of the volume of a particular object is either represented in millimeter (ml) or cubic centimeter (cm^3). The purpose of this laboratory investigation is to provide an introduction to the concept and applications of density measurements. Several unknown samples of matter can be identified thanks to their density measurement. Performing a density measurement on each sample of unknown material will help determine whether the samples are made of the same material or not. The density of each sample will be calculated from the mass (sample weight) and volume (sample space) measurements. The equipment used in this laboratory investigation is: water, tongs, graduated cylinder, top loading balance, caliper. , and two caps (black and brown). To determine the density of each sample, the mass of the two caps (black and brown) had to be measured on a top-loading electronic balance. The mass of the black cap was 6.84 g, while the mass of the brown cap was 0.36 g. Volume is determined by two different methods (volume per length and volume per displacement) to illustrate the accuracy of the data. The general formula for volume per length is given by V = π*r^2*h (where r-Radius-Height and v-Volume). In order to obtain the exact value of the radius for each of the caps, the caliper is used. to measure the diameter, which is then divided by...... middle of paper......^3) ^2*0. 51 = 0.88 cm^3 The density of the black cap is calculated as: D = m ÷ v = 6.84 g ÷ 16.43 cm^3 = 0.416 g/cm^3 The density of the brown cap is calculated as follows: D = m ÷ v = 0.36 g ÷ 0.88 cm^3 = 0.41 g/cm^3 Mass of cap (g) Volume per length (cm^3) Density (G/cm^3) Black 6.84 g 16.43 cm^3 0.416 g/cm^3 Brown 0.36 g 0.88 cm^3 0.41 g/cm^3 Mass of cap (g) Volume per displacement (ml) Density ( G/ml)Black 6.84 g 5.5 ml 1.2 g/mlBrown 0.36 g 2.0 ml 0.2 g/mlBased on the density calculated from the mass and the two methods used to obtain volume. One could conclude that the two caps are not made of the same material. Based on the fact that the mass of each cork is different from each other, the black cork weighs 6.84 g and the brown cork weighs 0.36 g. The mass data (g) clearly shows that the black cap has more weight than the brown one..