Lesson 12 Calculations with Density Density mass volume

Lesson 12 Calculations with Density

Density = mass volume The unit for density is either g/m. L or g/cm 3. 1 m. L = 1 cm 3

1. Given that a 2. 44 cm 3 sample of an element has a mass of 47. 14 g. Determine the density and the element. Density = mass volume D = 47. 14 g 2. 44 cm 3 D = 19. 3 g/cm 3 What do you yell to get someone’s attention? Au

2. Determine the volume of a 60. 50 g sample of a liquid with a density of 1. 56 g/m. L. 60. 50 g x 1 m. L 1. 56 g = 38. 8 m. L 3 sig. figs

3. Determine the mass of a 85. 0 cm 3 sample of lead. Do some research to find density of lead. Chemistry: Periodic Table and More Density = 11. 34 g/cm 3 85. 0 cm 3 x 11. 34 g 1 cm 3 = 964 g 3 sig. figs.

4. Determine the volume in mm 3 of a 15. g sample of lead. Density = 11. 34 g/cm 3 15. g x 1 cm 3 11. 34 g x 1000 mm 3 3 1 cm = 1. 3 x 103 mm 3

5. Determine the mass of a 208 mm 3 sample of lead. Density = 11. 34 g/cm 3 208 mm 3 x 1 cm 3 1000 mm 3 x 11. 34 g 1 cm 3 = 2. 36 g

6. What volume of sample of lead (11. 34 g/m. L) has the same mass as 45. 00 m. L of Ag (19. 32 g/m. L). 45. 00 m. L x 19. 32 g 1 m. L x 1 m. L 11. 34 g = 76. 67 m. L

6. Determine the volume in mm 3 of a 1. 0 x 10 -8 ton sample of silver. Chemistry: Periodic Table and More Density = 10. 5 g/cm 3 1. 0 x 10 -8 ton x 2000 lbs x 1 kg x 1000 g x 1 cm 3 x 103 mm 3 1 ton 2. 21 lbs 1 kg 10. 5 g 1 cm 3 Density of Coke = 0. 86 mm 3