Question

Calculate the density of a block of metal with a volume of 12.5 cm cubed and mass of 126.0 g

Answer 1

Answer : The density of the metal will be $10.08g/cm^3$

Explanation :

Density : It is defined as the mass of a substance contained per unit volume.

Formula used :

$Density=\frac{Mass}{Volume}$

Given:

Mass of metal = 126.0 g

Volume of metal = $12.5cm^3$

Now put all the given values in the above formula, we get:

$Density=\frac{126.0g}{12.5cm^3}=10.08g/cm^3$

Thus, the density of the metal will be $10.08g/cm^3$

Answer 2

Density is defined as mass/volume (or m/v).

So,

(126.0 g)/(12.5 cm^3)= 10.08 g/cm^3

If your teacher requires correct significant figures, the answer is 10.1 g/cm^3.
If not, the first answer is fine.