A cube of an unknown metal measures 0.250 cm on one side.The mass of the cube is 0.095 g.Which of the following is most likely the unknown metal?
A)zirconium
B)rhodium
C)vanadium
D)copper
E)niobium

Question

A cube of an unknown metal measures 0.250 cm on one side.The mass of the cube is 0.095 g.Which of the following is most likely the unknown metal? 
A)zirconium 
B)rhodium 
C)vanadium 
D)copper 
E)niobium

Quizplus · Accepted Answer

We can use the density of the metal to determine the most likely choice. Density is defined as mass/volume. The volume of the cube can be determined by calculating (0.250 cm)^3 = 0.0156 cm^3.

Then, density = 0.095 g / 0.0156 cm^3 = 6.09 g/cm^3.

By comparing this density to the known densities of the choices provided, we can see that choice C) vanadium has the closest density to our calculated value at 6.11 g/cm^3. Therefore, vanadium is the most likely unknown metal.

A Cube of an Unknown Metal Measures 0