Of the objects below, which is the most dense?
A. an object with a volume of 13 dm3 and a mass of 1.29 × 103 g
B. an object with a volume of 0.00212 m3 and a mass of 4.22 × 104 mg
C. an object with a volume of 3.91 × 10-24 nm3 and a mass of 7.93 × 10-1 ng
D. an object with a volume of 139 mL and a mass of 93 g
E. an object with a volume of 2.5 L and a mass of 12.5 kg
Density = mass/volume
The Attempt at a Solution
I'm having trouble converting my units of volume so I can calculate these, especially with C. How do you get from cubic nanometers to cubic centimeters? I know it's not as easy as just dividing by 107. I'm guessing you need to find out how many nanometers are in a centimeter and then cube the result and divide by that. Is there some quicker method that I'm missing?