Question

¿Qué volumen ocuparán 12 g de hierro?

Answer 1

Answer:

        $\large\boxed{\large\boxed{volume=1.5cm^3}}$

Explanation:

Translation:

• What volume will 12g of iron occupy?

Solution

Iron is a solid substance at room temperature. You can find the volume of solids (and of not solids) using the density.

      $Density=\dfrac{mass}{volume}$

You can obtaindthe density of most pure substances in the internet. The density of iron at room temperature is 7.874 g/cm³.

Thus, substituting in the formula, you get:

      $7.874g/cm^3=\dfrac{12g}{volume}\\ \\ \\ volume=\dfrac{12g}{7.874g/cm^3}\\ \\ \\ volume=1.5cm^3$

The answer is rounded to two significant figures because the input, 12g, has two significant figures.