Density HW

7H: complete all problems

8th grade: complete 1-4

SHOW THE SET UP OF EACH PROBLEM. USE A CALCULATOR TO SOLVE. ROUND TO THE NEAREST 10^th or 0.1

Density = Mass / Volume                                                    

FIND THE DENSITY:                                                  

1.  59.5 grams of wood with a volume of 85 cm³                  

2.  150 cm³ of plastic with a mass of 90 grams                          

3.  68 grams of mercury with a volume of 5cm³                              

4.  55cm³ of water with a mass of 66 grams                              


Mass = Density x Volume

 FIND THE MASS:
5.  900 cm3 of copper, which has a density of 8.8 g / cm³
6.  333 mL of corn oil, which has a density of 0.9g / cm³
7.  750 cm³ of rubber, which has a density of 1.3 g / cm³
8.  125 cm³ of tar, which has a density of 1.02 g / cm³

Extra Credit:

1.  The density of pine is generally about 0.5 g/cm³.  What is the mass of a 800 cm3 piece of pine? 

2.  What is the volume of 325 g of metal with a density of 9.0 g/cm³?

3.  Diamonds have a density of 3.5 g/cm³.  How big is a diamond that has a mass of 0.10 g? 

4.  A graduated cylinder is filled with water to a level of 40.0 cm³.  When a piece of copper is lowered into the cylinder, the water level rises to 63.4 cm³.  Find the volume of the copper sample.  If the density of the copper is 8.9 g/cm³, what is its mass?