V = 25,364.4 cm³ Is the volume
r = 2.7g/cm³ Is the density
To calculate mass you use formula:
m= V*r
To avoid remembering this formula you can see the type of unit on each given variable. We can see that we have g/cm³ and cm³. If we multiply them, we negate cm³ and cm³ and we are left with g which is unit for mass.
Therefore the answer is m = 68,486,6 g
