Answer:
Explanation:
There's a great many assumptions in this question. We have to assume that the rod was completely immersed. We also have to note that we can read the volumes to 3 places accurately. School graduated cylinders are not that accurate.
Leaving those objections aside, here is how the question should be done.
Final volume = 15.0 mL
Initial volume = 10.0 mL
Water displaced = 5.0 mL
The amount of water displaced is the same as the volume of the metal rod.
Finally the mass of the rod is 12.0 grams.
Density = mass / volume
Density = 12.0 grams / 5.0 mL
density= 2.4 grams / mL a mL and a cc^3 are the same thing.
density = 2.4 grams / cc^3
