The mass of the titanium and that of iron would be 1.414 kg and 2.476 kg respectively.
First, there is a need to calculate the volume of the titanium cube:
Recall that:
volume of a cube with side L = [tex]L^3[/tex]
In this case, L = 6.8 cm, thus
Volume of the titanium = [tex]6.8^3[/tex]
= 314.432 cm3
Also, recall that:
density = mass/volume
Density of titanium = 4.5 g/cm3
Hence, mass of the titanium = density x volume
= 4.5 x 314.432
= 1414.94 g
1414.944 g = 1414.944/1000 kg
= 1.414 kg
If it were to be an iron, the density of iron is 7.874 g/cm3
mass of the iron = 7.874 x 314.432
= 2475.838 g
2475.838 g = 2475.838/1000
= 2.476 kg
More on density of substances can be found here: https://brainly.com/question/1632512
