Rico mixed up 500cc of salt solution. He weighed it and found its mass to be 585g. Will his shake-up toy work the way he wants it to if he uses this salt solution? Why or why not? Remember, 1ml=1cc. object of materials and there densities are leaves 1.25g/cc and stars 1.12g/cc. Formula is d=m/v. The is making a toy with plastic stars and leaves. they want to know if you put them in a jar with a salt solution will the stars float and leaves sink. I'm so confused

Question

Rico mixed up 500cc of salt solution.  He weighed it and found its mass to be 585g.  Will his shake-up toy work the way he wants it to if he uses this salt solution?  Why or why not?  Remember, 1ml=1cc.  object of materials and there densities are leaves 1.25g/cc and stars 1.12g/cc.  Formula is d=m/v.  The is making a toy with plastic stars and leaves.  they want to know if you put them in a jar with a salt solution will the stars float and leaves sink.  I'm so confused

anonymous · Answer

objects less dense than the fluid float, objects more dense than a fluid sink.
find density of salt solution 585g/500cc = 1.17g/cc 
leaves density = 1.25g/cc, stars density = 1.12g/cc 
Stars float, leaves sink.  since everything is in g/cc, you dont have to worry about the info 1ml=1cc.

anonymous · Answer

I still don't know how to put it in the formula (d= m/v).

anonymous · Answer

density = mass / volume.    
density of salt solution = 585g(mass)/500cc(volume)