Question

Question #cc889

Answer 1

The correct answer is `D`. Seee xplanation for details.

Explanation:

In the question we have the mass and the density given, and we must calculate the volume.

To do this we have to use the formula:

`d=m/V`

where `d` - density, `m` - mass and `V` - volume

After rearranging the formula we get:

`V=m/d`

Before calculations we have to check the units:

The density is given in `g/(cm^3)`, while the mass is given in `kg`. Looking at the answers we can see that we have to express the mass in grams. To do this we have to multiply the mass in kilograms by `1,000`: `m=18,754,000g`

Now we can divide the numbers to get the volume:

`V=(1,754,000)/0.788~~2.38xx10^7`