A student finds a rock on the way to school. In the laboratory he determines that the volume of the rock is 29.7 cm3, and the mass in 139.943 g. What is the density of the rock?

Answer 1

well, since you're given v ery little info, you should expect the calculation to be relatively simple.

density is gm/cm^3. You are given two data: g of rock and cm^3 volume, so

density = 139.943g/29.7cm^3 = 4.712 g/cm^3

Answer 2

wrong the actual formula is d=m/v
so you take the mass and divide it by volume
which is D=M/V= 399.9g/22.7 that is =1.76g/cm3=centemeter cube

Answer 3

i suck at math