Determining the Identity of Irregular Solids

[justinbaker]

well trying to help my little brother with some chem homework, and i believe i am just thinking too hard about this question

anyways its a whole chem lab thingy about the composition of pennies and one of the thinking questions is

Explain how you might determine the identity of an irregularly shaped solid that is soluble in water

now when it says "identity" I am assuming they are talking about density. mass/volume

so obviously we weigh the solid to get the mass

but if it dissolves in water, how are we supposed to get the volume?

is it as simple as putting the solid in a liquid that it will not dissolve in?

 

[LtStorm]

Yeah, it sounds as simple as putting it in a liquid it won't dissolve into measure its volume.