Respuesta :
Assuming that the liquid we are talking about is water. There are 16,709.212 × 10^(23) (approx) molecules in 50 litres of water.
What is molar mass?
The mass of a substance divided by the number of moles present in that compound is called the molar mass. One mole of any substance is given by 6.022 × 10^23 atoms or molecules.
This number is known as Avagadro's number. It is used to calculate the number of atoms or molecules in a compound.
Assuming that the liquid we are talking about is water.
50 litres = 50,000 grams of water.
Number of moles in 50,000 grams of water =
50,000 × 1 / 18.02
Where 18.02 is the molar mass of water.
50,000 / 18.02 = 2,774.695 (approx)
Number of molecules in 2,774.695 moles of water
2,774.695 × 6.022 × 10^(23)
=16,709.212 × 10^(23) approx.
Therefore, there are 16,709.212 × 10^(23) molecules in 50 litres of water.
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