Density Applying Mass and Volume and Area

A piece of copper has a mass of 89g and a volume of 10 cm3.  What would be the density of the copper?

• 0.89 g/cm3

• 89 g/cm3

• 8.9 g/cm3

• 890 g/cm3

The density of air at a certain temperature is 1.21 g/L. A large empty box contains 151.2 g of air inside it. Calculate the volume of the box.

• 0.008 L

• 125 L

• 1249 L

• 12.5 L

So you CAN'T use your ruler to measure thickness or height of the foil, which means that you can't use the equation LxWxH to get the volume of the foil in cm³.
However, If you knew the ___________ and the conversion factor __________, then you could calculate the volume of the foil.

• area , 1 mL/cm³

• mass, 1000cm³=1L

• mass, density

• 1.6 km/mi, mass

Density or any "per" statement is a conversion factor. The density of aluminum is 2.70 g/cm³ which you should RE-WRITE as an equivalence or 2.70 g = 1 cm³
What is the volume for a piece of HD aluminum with a mass of  1.03 g 

• 0.38 cm³

• 2.62 cm³

• 1.67 cm³

• 2.78 cm³

Now that you know how to determine the thickness of a piece of foil by applying:density, mass, and the equationV=LxWxH ......Go to the space below your data table and perform the same calculations from problems #7 and #9 above, but with the data for your piece of foil!

• Did it and my #'s are correct.

• Oops! I fat fingered that one.

Frank has an eraser. It has a mass of 4g, and a volume of 2cm³. What is its density?

• 8 g/cm³

• 2 g/cm³

• 1/2 g/cm³

• 24 g/cm³

Jack has a rock. The rock has a mass of 14g and a volume of 2cm³. What is the density of the rock?

• 7 mL

• 7 g/cm³

• 28 g/cm³

• 1/7 g/cm³

A mechanical pencil has the density of 3.000 g/cm³.  The volume of the pencil is 15.8 cubic centimeters.  What is the mass of the pencil?

• 47.4 g

• 50 g

• 0.190  g

• 5.27 g

mass per unit of volume

• density

• volume

• weight

• mass

amount of space an object takes up

• density

• volume

• weight

• mass