What is the density of a liquid, 125 liters of which have a mass of 100 kg?

m = 100 kg
V = 125 L = 0.125 m ^ 3
ρ -?
The density of a substance ρ is the mass of a unit volume of this substance. In order to find the density ρ of a substance, the mass m must be divided by its volume V. ρ = m / V, we substitute the data into the formula ρ = 100 kg / 0.125 m ^ 3 = 800 kg / m ^ 3
Answer: density of matter ρ = 800 kg / m ^ 3