A molecule of water is composed of an oxygen atom and ______.

Find the mass of 2.5 mole of oxygen atom .

Calculate the mass of oxygen atom in amu.

A molecule of haemoglobin carries how many oxygen molecule

The atomic number of oxygen is ________.

The structure of a water molecule is shown in figure. Find the distance of the centre of mass of the molecule from the centre of the oxygen atom.

Relative molecular mass of water (H_(2)O) is calculated as follows: A water molecule is made of 2 atoms of hydrogen and one atom of oxygen.