The density will be the same. Since the two materials are identical, there will be an equal density in both drops.
In the first drop, lets say there is 1 cm3 of pure mercury, weighing 13.6 g. The density is 13.6g/1 cm3, or 13.6g/cm3.
In the second sample, 10 times larger, it is 10cm3 of pure mercury, but it also has 10 times larger mass, at 136g. This is 136g/10cm3, which simplifies to the same 13.6g/cm3.
Hope that helps!
