Milk has a density of 1.25 g/ml, calculate the mass of 1 l of milk.

The correct option is (C) 1.250 kg

Step 1, Given data

Density of milk = 1.25 g/ml

Volume = 1 liter = 1000 ml

Step 2, Finding mass of the milk

We know,

Density = $\frac{mass}{volume}$
So, mass = density $\times$ volume

Putting all the values
mass = 1.25 g/ml $\times$ 1000 ml = 1250g = 1.250 kg.

Hence the mass of the milk is 1.250 kg