Question

45 The mass of an unidentified metal sphere is 133 grams. Students determine the

volume of the metal sphere by placing it in a graduated cylinder filled with 25
milliliters of water. The volume of the water rises to 40 milliliters when the metal
sphere is placed into the graduated cylinder. The students calculate the density
of the metal sphere in order to determine the identity of the metal using the
chart below.
Density of Common Metals
Density (g/mL)
Aluminum
Metal
2.70
Tin
7.26
Iron
7.87
8.86
Cobalt
What is the identity of the metal?
A Aluminum
B
Tin
C Iron
D Cobalt

Answer 1

D Cobalt

Step-by-step explanation:

The volume of the sphere is 40 -25 = 15 cm^3

Density = mass/volume = 133 gm / 15 cm^3 = 8.87 gm/cm^3

which corresponds to Cobalt from the chart