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Name____________________Period______ Density Calculations density = mass volume UNITS OF DENSITY solids (g/cm3) liquids (g/mL) Find the unknown quantity: (2 pts each) 1) d = 3 g/mL V = 100 mL M=? 2) d = ? V = 950 mL M = 95 g 3) d = 0.5 g/cm3 V=? M = 20 g Find the unknown quantity (CONVERT FIRST to g or mL) 4) d = 24 g/mL V = 1.2 L = _____ mL M=? 5) d = ? V = 100 mL M = 1.5 kg = ______ g 6) d = V = 0.52 L = ______ mL M = 500 mg = ______ g WORD PROBLEMS (2 pts each) 1.) A block of aluminum occupies a volume of 15.0mL and has a mass of 40.5g. What is its density? 2.) Mercury metal is poured into a graduated cylinder that holds exactly 22.5mL. The mercury in the cylinder has a mass of 306.0g. From this information, calculate the density of mercury. Unit 6 (Ch. 14) Density/Buoyancy 3/2010 Contreras Name____________________Period______ 3.) Find the mass of 250mL of benzene that has a density of 0.8765g/mL. 4.) A rectangular block of copper metal has a mass of 1896g. The dimensions of the block are 8.4cm by 5.5cm by 4.6cm. From this data, what is the density of copper? (hint: find the volume of a block first) 5.) What is the volume of a silver that has a mass of 2500g and a density of 10.5g/cm 3. 6.) A block of lead has dimensions of 4.50cm by 5.20cm by 6.00cm. The block has a mass of 1587g. From this information, calculate the density of lead. Extra Credit Question (4 pts) 7.) 28.5g of an irregular iron rock is added to a graduated cylinder containing 45.5mL of water. The water level rises to the 49.1mL mark, From this information, calculate the density of iron. Unit 6 (Ch. 14) Density/Buoyancy 3/2010 Contreras