Density Lab

Objective- Our goal for this lab was to calculate the Density of a substance. We needed to make sure we had the materials to find mass and volume and then use a formula to calculate density.

Introduction- The main principle of this experiment was to figure out the Density of certain objectives given to us in the lab. We had to know the the formula D-M/V in order to find the density of that object.We also needed to know the density of water(1.0 g/l) in order to predict if something would float or sink.

List of Materials/equipment and Safety Precautions-
-Metal bar
-Scale
-Graduated Cylinder
-Water
-Densitometer
-Lab Book
-Funnel

Some of the Safety Precautions were to not drop the metal bar inside the graduated cylinder but to slowly slide it in . This will avoid any of the water to spill which can cause wrong calculations. Also when dealing with a glass graduated cylinder make sure not to use to much force when handling it. If to mush pressure is put on the …show more content…
First was to calculate the mass of a empty graduated cylinder(1.58) and then the mass of a graduated cylinder filled with 5ml of the unknown liquid(2.11). Again to find the volume we calculated the difference which was 8ml. Then finally the information gathered was placed into the formula D=M/V and got 0.066g/ml. The final part of the experiment was to find the density of Air. This part required a new tool which was the densitometer. First, the empty densitometer was placed on a scale and weighed 36.76 grams. Then the densitometer was filled with air and placed on the scale. The densitometer weighed 52.07g which is heavier then when it was empty.Then to find the mass of the air you had to subtract the mass of a empty densitometer and one that was filled with air. The volume was given to us because it showed on the densitometer. Finally we placed all the information and put it into the formula