The density of copper is 8.96 g/cm³.What is the mass in mg of a cube of copper that measures 2.31 mm on each side? A)0.0207 g B)0.110 g C)2.07 g D)110 g

Question

Quizplus · Accepted Answer

First, we need to convert the dimensions from millimeters to centimeters, since the density is given in terms of grams per cubic centimeter:

2.31 mm = 0.231 cm

Next, we can use the formula for the volume of a cube:

V = s^3

where s is the length of one side. Substituting the given value of s:

V = (0.231 cm)^3 = 0.0122 cm^3

Finally, we can use the density of copper to calculate the mass:

m = V*density = (0.0122 cm^3)(8.96 g/cm^3) = 0.109632 g

To convert this to milligrams, we multiply by 1000:

0.109632 g = 109.632 mg

Therefore, the mass of the cube is 0.110 g (rounded to three significant figures).

The Density of Copper Is 8