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a straightforward method of finding the density of an object is to measure its mass and then measure its volume by submerging it in a graduated cylinder. What is the density of a 220 g rock that displaces 87.0 cm3 of water? (Note that the accuracy and practical applications of this technique are more limited than a variety of others that are based on Archimedes' principle.)
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Density= Mass/Volume. Therefore, Density= 220g/87cm^3 = 2.53g/cm^3
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