The volume of the cube osmium metal is calculated by multiplying the given dimension to itself three times.
v = (1.5 cm)(1.5 cm)(1.5 cm)
v = 3.375 cm³
Density is calculated by dividing the mass by volume.
d = (76.31 g)/(3.375 cm³)
d = 22.61 g/cm³
Thus, the density of the metal is approximately 22.51 g/cm³.