Question

A piece of magnesium has a cylindrical shape with a height of 8 centimeters and a diameter of 2 centimeters. If the magnesium has a density of 1.78 g/cm3
, what is the mass of the cylinder sample? Round your answer to the nearest hundredth. Use π≈3.14
.(1 point)
g

Answer 1

Volume = πr^2h = 3.14*(1 cm)^2*(8 cm) = 25.12 cm^3.
Mass = density × volume = 1.78 g/cm^3 × 25.12 cm^3 = 44.7136 g ≈ 44.71 g.