Iron has a density of 7.9 g/cm³. What is the mass of a cube of iron with the length of one side equal to 55.0 mm? A)2.1 x 10⁴ g B)4.3 x 10² g C)1.3 x 10³ g D)1.4 g E)2.3 x 10^-2 g

Question

Quizplus · Accepted Answer

To find the mass, first convert the side length from mm to cm (55.0 mm = 5.5 cm). Then, calculate the volume of the cube (V = side^3 = 5.5^3 = 166.375 cm^3). Finally, use the density formula (mass = density x volume) to find the mass: 7.9 g/cm^3 x 166.375 cm^3 = 1.3 x 10^3 g.

Iron Has a Density of 7