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Criteria for Success Whether you are using density as a conversion factor or using the formula method, make sure all the units cancel appropriately, in doing so you know the final answer is correct. Show your work clearly and remember that the mass will bear the unit of mass, while the volume will bear the unit of volume. The example below illustrates that: - The density of iron is 7.20g/mL. Calculate the volume occupied by 129g of iron? Solution: Using density as a conversion factor (7.20g=1mL), since the volume is needed the density will flipped for the mL to be on top and the mass below. (1129g)(7.20g1mL)=17.9mL Density formulas Assignment Questions: 1. If 749mL of palm oil has a mass of 328g, determine the density of palm oil. 2. The density of gold is 19.3g/mL. If 37.25g of pure gold nuggets was added to a graduated cylinder containing 18.48mL of water, to what volume level will the water in the cylinder rise