Formula:

Density = Mass / Volume

Solving for Mass:

Mass = Density * Volume

Given:

* Density = 2.72 g/cm³

* Volume = 38.6 cm³

Calculation:

Mass = 2.72 g/cm³ * 38.6 cm³

Mass = 105.07 g

Answer: The mass of 38.6 cm³ of limestone is approximately 105.07 grams.