Determination of Density Essay Example for Free

Determination of Density EssayPurpose To determine the densities of aluminum and zinc piston chambers Density is the kin between the mass of an object and its multitude. Sometimes density can be easy to sense. If two objects receive exactly the same shape and size, the denser one may feel heavier. If their densities are close together, it can be hard to tell the difference. It gets really tough if you are dealing with materials that have very different sizes or very different shapes. The only way to decide the density of an object is to measure its mass and its volume, indeed divide. Ex. Density= Mass/Volume ProcedureFor Aluminum1. ponder the aluminum cylinders individually on the analytic balance to the nigh 0.0001g and record the weights 2. With a vernier caliper, measure the diameter of each cylinder to the close 0.01cm and record 3. Again, using the vernier caliper, measure the length of each cylinder to the nearest 0.01cm and record 4. cypher the volume of each cyl inder by using the formula V= (3.14d2h)/4 For coat1. Weigh the zinc cylinders individually on the top loading balance to the nearest 0.01g, and record the weights 2. Place overflowing water in a 100mL graduated cylinder to cover the object. Record the volume of water to the nearest 0.1mL by reading the bottom of the meniscus 3. Place the zinc cylinder in the graduated cylinder. analyze the new volume and determine the volume for each piece of zincDataDensity of ZincMass1 104.0168gVolume1 18mLDensity1 5.7780g/cm3Mass2 92.8178gVolume2 15mLDensity2 6.1876g/cm3Mass3 72.2115gVolume3 10mLDensity3 7.2215g/cm3Mass4 55.3077gVolume4 9mLDensity4 6.1453g/cm3Mass5 35.2653gVolume5 7mLDensity5 5.0379g/cm3Average Density 6.079g/cm3Density of AluminumMass1 26.48gVolume1 6.28mLDensity1 4.22g/cm3Mass2 21.50gVolume2 5.01mLDensity2 4.30g/cm3Mass3 17.58gVolume3 4.14mLDensity3 4.25g/cm3Mass4 13.10gVolume4 2.92mLDensity4 4.48g/cm3Mass5 8.68gVolume5 2.04mLDensity5 4.25g/cm3Diameter = 1.025cmAverage Densi ty 4.29g/cm3ConclusionsThe densities of both objects were successfully determined. The come density of the aluminum cylinders was 4.29g/cm3, and the density of the zinc cylinders was 6.079g/cm3. Both of these values seem reasonable, and the zinc seems to be sparingly heavier than the aluminum. The density of the zinc cylinders was piece using the volume by displacement method, and the volume of the aluminum cylinders was found by the formula method V= (3.14d2h)/4. Problems with the equipment may have possibly introduced error into the measurements.The 100mL graduated cylinder used to find the volume of the zinc cylinders was only marked in 10mL increments, requiring estimation for levels in between. The volume of the aluminum cylinders required the use of the vernier caliper to measure the diameter and the length of each cylinder. untimely use of the vernier caliper may have altered the measurements received for the aluminum cylinders. The error introduced by these problems was slight, however, and the calculated densities for both objects are probably quite reliable.