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# Density

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### Density

1. 1. Density<br />Measures how much matter (mass) is in a certain amount of space (volume)<br />
2. 2. Calculating Density<br />Density equals mass divided by volume<br />D = m / v<br />g/mL or g/cm3<br />
3. 3. Sample Problem #1<br />What is the density of a chocolate bar that has a mass of 55.6 g and a volume of 30 cm3 ?<br />
4. 4. Sample #2<br />What is the mass of a gold brick that has a density of 19.3 g/mL and a volume of 15 mL?<br />
5. 5. Sample #3<br />What is the volume of silver that has a density of 10.5 g/cm3 and a mass of 25 g <br />
6. 6. Applying Density<br />Why do some objects float in water while others sink?<br />