If the volume of a drop of water is `0.0018 mL` then the number of water molecules present in two drop of water at room temperature is :

The number of water molecules is maximum in

The number of water molecules in one litre of water is:

The volume of a drop of water is 0.04 mL . How many H_(2) O molecules are there in a drop of a water? d = 1.0 g mL .

Calculate the number of atoms present in one drop of water having mass 1.8 g .

At 100°C and 1 atm, if the density of liquid water is 1.0 g cm^(-3) and that of water vapour is 0.0006 gcm-3 , then the volume occupied by water molecules in 1 litre of steam at that temperature is:

The number of electrons present in of water is ______________.

Oridinary water contain one part of heavy water per 6000 parts of water by weight. The number of heavy water molecules present in a drop of water of volume 0.01 mL is (density of water 1 g/mL)

Calculate the number of molecules in a drop of water weighing 0.048 g.

At 100^oC and 1 atm, if the density of the liquid water is 1.0gcm^(−3) and that of water vapour is 0.0006gcm^(−3) , then the volume occupied by water molecules in 1 L of steam at this temperature is :

At 100^(@)C and 1 atm, if the density of the liquid water is 1.0 g cm^(-3) and that of water vapour is 0.00006 g cm^(-3) , then the volume occupied by water molecules in 1 L steam at this temperature is