Transcription of Chapter 1 Chemical Foundations 1.8 Density
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Chapter 1 Chemical Foundations Density Copyright 2005 by Pearson Education, Inc. Publishing as Benjamin Cummings 1. Density Density Compares the mass of an object to its volume. Is the mass of a substance divided by its volume. Density expression Density = mass = g or g = g/cm3. volume mL cm3. Note: 1 mL = 1 cm3. 2. Densities of Common Substances 3. Learning Check Osmium is a very dense metal. What is its Density in g/cm3 if g of osmium has a volume of cm3? 1) g/cm3. 2) g/cm3. 3) 111 g/cm3. 4. Solution Given: mass = g volume = cm3. Plan: Place the mass and volume of the osmium metal in the Density expression. D = mass = g volume cm3. calculator = g/cm3.
If 21 cans make 1.0 lb aluminum, how many liters of aluminum (D=2.70 g/cm3) are obtained from the cans? 1) 1.0 L 2) 2.0 L 3) 4.0 L Learning Check. 19 Solution 1) 1.0 L 125 cans x 1.0 lb x 454 g x 1 cm3 x 1 mL x 1 L 21 cans 1 lb 2.70 g 1 cm3 1000 mL = 1.0 L. 20 Which of the following samples of metals will displace ...
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