Question

The density of pencils is 2.39 g/mL. What is the mass of the pencils if it has a volume of 8.42 mL?

A) 20.1238 g
B) 10.0978 g
C) 5.348 g
D) 20.0058 g

Answer 1

To find the mass of the pencils with a volume of 8.42 mL and a density of 2.39 g/mL, multiply the density by the volume, resulting in a mass of 20.1238 grams, which corresponds to answer A) 20.1238 g.

Step-by-step explanation:

The density of the pencils is given as 2.39 g/mL. To find the mass of the pencils with a volume of 8.42 mL, we use the formula:

Mass = Density × Volume

Substituting the given values:

Mass = 2.39 g/mL × 8.42 mL

This results in:

Mass = 20.1238 grams (g)

Therefore, the correct answer is A) 20.1238 g.