Jawaban:

1. 0.5 m³/kg, 2. 46.225 lb, 3. 125 ft³

Penjelasan:

1. Specific volume = 1/density, so 1/2 m³/kg or 0.5 m³/kg is the specific volume of the material

2. Density of water is 8.345 lb/ U.S. gal. We will assume that the gal unit is U.S. gal, so..

Total mass = tank mass + water mass = 4.5 lb + 5 gal * 8.345 lb/gal = 46.225 lb

3. Specific gravity is ratio of solution density to a reference (mainly water), so we can treat the specific gravity just like density. The volume occupied by the solution will be:

V = mass/specific gravity = 100 lb / 0.8 lb/ft³ = 125 ft³