Worksheet: Dipole Moments

In this worksheet, we will practice calculating the dipole of a molecule using the relative positions of the atomic partial charges.

Q1:

Ammonia has a bond angle of 1 0 7 . 0 and an overall dipole moment of 1.47 D. Calculate to 3 significant figures the dipole moment of each N H bond.

Q2:

Hydrogen sulfide has a bond angle of 9 2 . 1 and an overall dipole moment of 0.970 D. Calculate to 3 significant figures the dipole moment of each S H bond.

Q3:

Water has a bond angle of 1 0 4 . 5 and each O H bond has a dipole moment of 1.50 D. Calculate to 3 significant figures the total dipole moment for the water molecule.

Q4:

Which of these compounds has a non-zero dipole moment?

  • ACarbon dioxide
  • BBoron trifluoride
  • CMethane
  • DWater

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