Question

A sample of lava has a volume of 15 mL and a mass of 45 g. What is its density?

A) 0.75 g/mL
B) 3 g/mL
C) 15 g/mL
D) 60 g/mL

Answer 1

The density of the lava sample is 3 g/mL.

Step-by-step explanation:

The density of a substance is calculated by dividing the mass of the substance by its volume. In this case, the mass of the lava is 45 g and its volume is 15 mL. To find the density, divide the mass by the volume:

Density = mass/volume
Density = 45 g/15 mL

By performing the division, we get:

Density = 3 g/mL

Therefore, the density of the lava sample is 3 g/mL, which corresponds to option B.