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Example Calculations 2.2.3 new total volume of 60.7mL ? Using equation (2.2.1a), d=(VS+wVw)mS=(60.7mL40.0mL)217g=20.7mL217g=10.5g/mL Question 2.2.7 Use equation (2.2.1a) to determine the density of an object with a mass of 50.258g which was placed in a 50mL graduated cylinder containing 14.32 mL of water. The object sinks and becomes completely immersed in the water making a new total volume of 28.53mL. Enter the density value in g/mL to the nearest 0.01g/mL. Include the unit using the symbol g/mL. In Part II of the experiment, the density of a liquid sample will be determiend by measuring the sample volume ( V in a graduated cylinder and determining the mass of the sample by measuring the combined mass of the sample and the graduated cylinder (ms+gc) and subtracting from this the measured mass of the graduated cylinder alone (mgc). In this approach, the density can be calculated from: d=VS(ms+gcmgc) (2.2.1b) Example Calculations 2.2.4 What is the density of a liquid sample for which the volume is measued to be 7.7mL using a graduated cylender with a mass of 5.742g ? The combined mass of the sample and the graduated cylinder is 12.841g. Usingequation(2.2.1b),d=Vs(ms+gcmgc)=7.7mL12.841g5.742g=7.7mL7.099g=mL0.92g Question 2.2.8 Use equation (2.2.1b) to determine the density of a liquid sample with a volume of 5.70mL which was placed in a 10-mL graduated cylinder having a mass of 5.703g. The combined mass of the sample and the gracuated cylinder is 10.947g. Enter the density value in g/mL to the nearest 0.01g/mL. Include the unit using the symbol g/mL