Calorimetric Analysis Lab

Two metal bars of an unknown identity were obtained, each bar was understood to have varying masses and volumes. The metal bars were then measured for their masses, bar one was measured at 19.3221g and bar 2 was measured at 15.6225g respectively. A graduated cylinder of 10 or 25 milliliters was obtained, in our testings, the 10 milliliters was used. Water was introduced into the graduated cylinder and the initial volume recorded at 4.9mL for bar one, and for bar two the cylinder was recorded to have an initial volume of 3.9mL. After each volume was measured, each bar was dropped into the cylinder. Bar one experienced a change of 2.2mL and bar two experienced a change of 1.8mL. The second section of the experiment dealt with finding the density of an unknown liquid.
We measured its relative mass and recorded in our lab notebook. The liquid was consequently poured into the cylinder and the volume measured. To finish off the experiment, section three was conducted in order to compare samples of known liquids. Samples of olive oil, isopropyl, and water were obtained. Test tubes were dried and ready for samples to be placed in each. First, we placed olive oil in with isopropyl, we then saw that isopropyl was clearly above the olive oil. Next, we placed olive oil in with water and saw that olive oil was clearly above the water. Finally, we placed water in with isopropyl and saw that the isopropyl was above the water. With this section, we completed our experiment and cleaned the materials used and put them