Solution:

The O-H bond lengths in the water molecule (H₂ O) are 0.96 Å, and the H-O-H angle is 104.5 . The dipole moment of the water molecule is 1.85 D.

Compound	Electronegativity Difference	Dipole Moment (D)
HCl	1.9	1.82
HBr	0.9	1.08
HI	0.7	0.82
{ m HI}	0.4	0.44

Compare your answer from part B to the dipole moments of the hydrogen halides (the table). Is your answer in accord with the relative electronegativity of oxygen?