Question

To find an object’s density (D), first measure its mass (m) and volume (V). Then use the following equation:

D = m/V

Densities of Common Substances

Substance Density (g/cm3)
Water (liquid) 1.00
Silver (solid) 10.50
Lead (solid) 11.35
Examine the above equation and table. Robin has a lead ball with a mass of 227 g. What is its volume?
A.
476.7 g3
B.
20 g3
C.
20 cm3
D.
11.35 g/cm3

Answer 1

C. 20 cm^3

Explanation:

Using the equation D=m/v, you would plug in the given mass (227 g) into m and the given density of lead (11.35 g/cm^3). Solving for v=m/D, we find the answer to be 20 cm^3.

Also, you could cancel out all the answers except C because it is the only one in units of volume (1 cm^3 = 1 mL).