known value. The main focus with the investigation was to be able to use proper
procedures, measuring techniques, find the precision and accuracy with the results, and
proper use of significant figures while various equations were used. An additional focus
with the lab was the relationship between density, mass, and volume. In order to better
understand all information presented within the lab various trials were conducted and all
data was collected. This is helpful to comprehend the error in our measurements and
various ways lab equipment is used.
To begin the lab all proper materials were gathered for the lab. The first part of the
investigation was to weigh out approximately 1g of sand using a watch glass and scale.
Following the measuring out the mass of sand, density of water within different type of
volume measuring glassware needed to be determined. Types of glassware used were a
buret, beaker, graduated cylinder, and an Erlenmeyer flask. For each trial a consistent
volume was used for the water, for example, the beaker contained 50mL of water for each
trial. Additionally, each trial temperature of the water was measured to determine what
theoretical density would be selected. After volume and temperature were measured, the
glassware was weighed on the scale to determine the mass. All of this data was recorded
for the individual pieces of glassware and all received three trials each. The mass and
volume were then used to calculate the density of the water for each trial, and the final
number for each measurement was the average of all the results from the three trials.
Finally, after all data was collected percent error was calculated from the actual value and