Density = mass / volume; since we are given density and volume, we solve for mass.
Note that 280 cm^3 is not a mass but a volume.
d = m/v
m = v*d
m = 280 cm^3*0.0043 g/cm^3 (I assume it is g/cm^3)
m = 1.204 g.
Density = mass / volume; since we are given density and volume, we solve for mass.
Note that 280 cm^3 is not a mass but a volume.
d = m/v
m = v*d
m = 280 cm^3*0.0043 g/cm^3 (I assume it is g/cm^3)
m = 1.204 g.