Answer:
ρ = M / V ρ = density
M = ρ * V = 132.5 cm^3 * .01932 kg / cm^3 = 2.561 kg
Note: Water has a density of 1000 kg / m^3 = 1E-3 kg / cm^3
So the equivalent weight of water would be
1.0E-3 kg/cm^3 * 132.5 cm^3 = .132 kg for the water
The specific gravity of the Au is 2.561 / .132 = 19.4 (correct)