Answer :
A piece of magnesium in the shape of cube measuring with height of 5.62 cm, and this magnesium sample having mass of 1.41 g has a density of 1.78 g/cm³.
What is Density?
Density is known as the mass of substance per unit volume. Density is denoted by a Greek symbol ρ. Density is equal to the mass substance divided by its volume. The SI unit of Density is g/cm ³or kg/m³.
ρ = m
v
where,
ρ = density
m = mass
v = volume
Given :
Height of the cylinder is 5.62 cm ,
Diameter of the cylinder is 1.34 cm
Radius = D/2 = 1.34/2 cm
Radius = 0.67 cm
Volume of cylinder = πr²h
Volume of cylinder = 3.14 × (0.67)² × 5.62
= 7.92 cm³
Density = Mass
Volume
Density = 14.1
7.92
Density = 1.78 g/cm³
Hence, the density of sample = 1.78 g/cm³ .
To learn more about density,
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