Question

A 55.81 gram irregular object made out of one of the metals in #6 raises the water level in a graduated cylinder from the 17.6 mL level to the 24.7 mL level. What is the density and identity of the metal?

Answer 1

density = mass/volume
mass = 55.81g
volume = 24.7-17.6 = ?mL.

Answer 2

A 55.81 gram irregular object made out of the one the metals in #6 raises the water level in a graduated cylinder from the 17.6 mL level to the 24.7 mL level. What is the density and identity of the metal?

Answer 3

density is mass/volume. Since they give you the mass of 55.81g already, you need to find the volume which is 24.7mL-17.6mL=7.10mL. 55.81g/7.10mL= 7.86 g/mL. mL=cm^3 so it becomes 7.86 g/cm3 or 7.86 gxcm^-3. The metal that matches this density is Iron.