Answer :[tex]\rho = 7.9\ g/cm^3[/tex]
Explanation :
It is given that
Mass of iron, m = 39.5 g
Volume of iron, [tex]V = 5\ cm^3[/tex]
So, density is :
density, [tex]\rho =\dfrac{mass}{volume}[/tex]
[tex]\rho =\dfrac{39.5g}{5cm^3}[/tex]
[tex]\rho = 7.9\ g/cm^3[/tex]