devarshi-dt-logo

Question:

The number of water molecules is maximum in: 18 grams of water, 18 moles of water, 18 molecules of water, 1.8 grams of water

18 moles of water

18 grams of water

18 molecules of water

1.8 grams of water

Solution:

The number of water molecules is maximum in 18 moles of water (A). 18 grams of water corresponds to 1 mole and contains N water molecules where N is Avogadro's number. (B) 18 moles of water contains 18N water molecules. (C) 18 molecules of water. (D) 1.8 grams of water contain 0.1N water molecules.