If the volume of a sample of water is 25 millilitres (ml), what is the volume of this sample in litres (l)?

To convert millilitres to litres, we use the conversion factor that 1 litre is equal to 1000 millilitres. Therefore, to convert 25 millilitres to litres, we divide the number of millilitres by 1000.

Here’s the calculation:

25 ml ÷ 1000 = 0.025 l

So, the volume of the sample is 0.025 litres.

This conversion is important in many scientific and practical applications, as liters are a more standard unit of measure for larger volumes of liquids.