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Density 3.4

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**Density is the ratio of the mass of an object to its volume.**

3.4 Determining Density Density is the ratio of the mass of an object to its volume.

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3.4 Determining Density Density is an intensive property that depends only on the composition of a substance, not on the size of the sample.

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**Density and Temperature**

3.4 Density and Temperature Density and Temperature How does a change in temperature affect density?

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**Density and Temperature**

3.4 Density and Temperature Experiments show that the volume of most substances increases as the temperature increases. Meanwhile, the mass remains the same. Thus, the density must change. The density of a substance generally decreases as its temperature increases.

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for Sample Problem 3.10 Problem Solving 3.47 Solve Problem 47 with the help of an interactive guided tutorial.

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for Sample Problem 3.11 Problem Solving 3.48 Solve Problem 48 with the help of an interactive guided tutorial.

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Section Assessment 3.4

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3.4 Section Quiz 1. If 50.0 mL of corn syrup have a mass of g, the density of the corn syrup is 0.737 g/mL. 0.727 g/mL. 1.36 g/mL. 1.37 g/mL.

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3.4 Section Quiz 2. What is the volume of a pure gold coin that has a mass of 38.6 g? The density of gold is g/cm3. 0.500 cm3 2.00 cm3 38.6 cm3 745 cm3

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3.4 Section Quiz 3. As the temperature increases, the density of most substances increases. decreases. remains the same. increases at first and then decreases.

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**Solve the Concept Map with the help of an interactive guided tutorial.**

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Chemistry 21.3.

Chemistry 21.3.

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