Eliza Eshet Lab Partner: Zoe Sinton C103 T 2:30-5:30 pm Jing Yang September 23, 2014 Penny Density Lab Introduction Using pennies in an aqueous solution demonstrate the simple use of mass and volume required to understand the measurement of density. The purpose of this lab is to understand density’s’ significance. The density of a substance is a physical property and can be discerned by its homogeneous separation of levels with substances of differential densities. Determining density does not require any chemical or constructive processes. Density is the ratio of a substance's mass to its own volume. The equation for density is … Mass/ / Volume =Density The metric system unit for density of a solid or liquid is demonstrated by g/mL or g/cm^3. 1mL=cm^3 In this experiment we compare the densities of pennies over a span of 52 years. The procedure should demonstrate …show more content…
When all of your materials are available you measure out about 15 mL of liquid into the graduated cylinder. After you record an estimation of volume in the graduated cylinder, you must also find the mass of the (10) pennies using the SAME balance each time. Now by slowly dropping the pennies into the graduated cylinder you can determine its density. By finding the difference in the newer raised volume and previous volume will determine the final volume. So then using the mass of pennies divided by the final volume one can find a substances’ density. To construct an educated measurement of density, you must conduct several trials and then use the average. Be sure to record all conversions and calculations as you go, so you can see how all the data links together. Use the numbers you found to understand the standard deviation for each table. Conduct the same experiment for the single year of a penny density, with another pair of lab