Answer :
The density of galena is 7.56 g/cm³.
We need to know about the density to solve this problem. Density can be described as how much the mass is in a volume unit. It can be written
ρ = m / V
where ρ is density, m is mass and V volume
From the question above, we know that
m = 12.4 g
V = 1.64 cm³
By substituting the given parameter, we can calculate the density
ρ = m / V
ρ = 12.4 / 1.64
ρ = 7.56 g/cm³
Hence, the density of galena is 7.56 g/cm³.
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