19. A rectangular block of wood measures 3cm

by 6 cm by 4 cm has a mass of 80.0 grams. What

is the density of the wood?

a. 5760 g/cm

b. 0.9 cm3/g

c. 1.11 g/cm3

d. 80 g/cm3

Answer: c. 1.11 g/cm³

Step-by-step explanation:

The formula for determining the volume of the rectangular block is expressed as

Volume = length * width * height

The rectangular block of wood measures 3cm by 6 cm by 4 cm. Therefore,

Volume = 3 * 6 * 4 = 72 cm³

The formula for determining density is expressed as

Density = mass/volume

Mass of wood = 80.0 grams

Volume of wood = 80/72 =

1.11 g/cm³