Determine the mass of oil in a 200m3 oil tank.

We know the volume of the oil tank from the terms of the assignment – 200 m³.

Let’s find the required mass of oil based on the formula:

ρ = m / V,

where ρ is the density of the substance (in our case, oil – 850 kg / m³ (the specific density of oil, depending on its origin, can be different, from 700 to 1000 kg / m³; we took the average value)), m is the mass, V – occupied volume.

Hence – m oil = ρV.

m = 850 kg / m³ * 200 m³ – m = 170,000 kg or 170 t (tons).

Answer: the mass of oil in the tank will be equal to 170 tons (or – 170 thousand kilograms).