# density class practice.docx - Density Class Practice The...

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Density Class Practice 1. The density of a piece of brass is 8.4g/cm 3 . If the mass of the brass is 510g, find the volume of the brass. Round to 2 sigfigs. 61 cm^3 2. Calculate the density of a material that has a mass of 52.457g and a volume of 13.5cm 3 . Round to 2 sigfigs. 3.9 cm^3 3. A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 22.7mL, and the mass is 39.943g. What is the density of the rock? Round to 2 sigfigs. 1.8g cm^3 4. The density of silver is 10.49g/cm 3 . If a sample of pure silver has a volume of 12.9993cm 3 , what is the mass? Round to 2 sigfigs. 1.4 x 10^4 5. What is the mass of a 350cm 3 sample of pure silicon with a density of 2.336g/cm 3 ? Round to 3 sigfigs. Unformatted text preview: 817 g/ cm^3 6. Pure gold has a density of 19.32g/cm 3 . How large (Volume) would a piece of gold be if it had a mass of 318.97g? Round to 3 sigfigs. 16.5 g/cm^3 7. The density of lead is 11.342g/mL. What would be the volume of a 200.0g sample of this metal? Round to 3 sigfigs. 2.268 x 10^3 g/cm^3 8. The mass of a toy spoon is 7.5g and its volume is 3.2mL, what is the density of the toy spoon? Round to 2 sigfigs. 9. A mechanical pencil has the density of 3g/cm 3 . The volume of the pencil is 15.8cm 3 . What is the mass of the pencil? Round to 3 sigfigs. 10. A screwdriver has the density of 5.5g/cm 3 . It also has the mass of 2.3grams. What is the screwdriver’s volume? Round to 2 sigfigs....
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