Lab Report on Density Measurement

2158 Words9 Pages
INTRODUCTION 1.1 Background of the Experiment Mass density describes how heavy an object is. Defined by the Greek letter ρ, read as rho, density is a basic yet important physical property of matter. For a bulk body without accounting its existing pores and voids, density is represented by the ratio of its mass and volume. It is given by the equation ρ= massvolume 1. The SI unit of density is kg/m3. However, its CGS units, g/cm3 or g/ mL, are the most commonly used ones in the laboratory. The conversion is given by 1 gcm3=1gmL=1000 kgm3 [1]. The density of a homogeneous liquid is also defined by the amount of mass per unit volume. Liquid is usually confined in a container, so its volume is relative to the volume of its container [2].…show more content…
The mean values of the density calculated from the four liquid samples Liquid | Mean Value (g/mL) | Water | 1.00976 + 1.01392 +1.014363 | =1.01268 | Acetone | 0.80524 + 0.80588 + 0.806523 | =0.80588 | Ethyl Alcohol | 0.89252 + 0.89320 + 0.893483 | =0.89307 | Isopropyl Alcohol | 0.88100 + 0.88140 + 0.881963 | =0.88145 | Table 6. The mean value of the density calculated for the alumina balls Alumina Ball (based on Size) | Mean Value (g/mL) | Small Cylindrical | 2.9065 + 2.87102 | =2.8888 | Large Cylindrical | 2.8285 + 2.52022 | =2.6744 | Large Spherical | 2.2975 + 2.19412 | =2.2458 | Average | 2.8888 + 2.6744 + 2.24583 | =2.6027 | RESULTS AND DISCUSSIONS The table below shows the obtained densities of the samples in four decimal places. Table 7. Summary of experimental densities of the samples Liquid/Material | Density (g/mL) at 25°C | Acetone | 0.8059 | Alumina | 2.6027 | Ethyl Alcohol | 0.8931 | Isopropyl Alcohol | 0.8815 | Water | 1.0127 | Table 8. Accepted values of the density of certain materials at 25°C [6] Liquid/Material | Standard Density (g/mL) at 25°C | Acetone | 0.7846 | Alumina | 2.7300 | Ethyl Alcohol | 0.8651 | Isopropyl Alcohol | 0.8493 | Water |

More about Lab Report on Density Measurement

Open Document