[" (1) Assuming the density of water to be "19/cm^(3)" ,calculate "],[" the volume occupied by one molecule of water."],[" (ii) Assuming the water molecule to be spherical,calculate "],[" the diameter of the water molecule."],[" (ili) Assuming that oxygen atom occupies half of the volume "],[" occupied by the water molecule,calculate approximately "],[" the diameter of the oxygen atom."]