Question

3.20 × 105 gallons of tar (SG = 1.20) is stored in a 20.0-ft tall storage tank. What is the total mass of the liquid in the tank?

Answer 1

Mass of the liquid in the tank will be
`1.45* 10^8kg`

Explanation:

We have given volume of tar
`V=3.20* 10^5gallon`

1 gallon = 3.785 liter

So
`3.20* 10^5gallon=3.20* 10^(5)* 3.785=12.112* 10^5liter`

Specific gravity = 1.2

Density of water
`=1000kg/m^3`

We know that specific gravity
`=(density\ of\ liquid)/(density\ of\ water)`

`1.2=(density\ of\ liquid)/(density\ of\ water)`

Density of liquid
`=1200kg/m^3`

So mass of liquid = volume × density

=
`12.112* 10^5* 1200=1.45* 10^8kg`

So mass of the liquid in the tank will be
`1.45* 10^8kg`