1) HCl consists of one H and Cl atom separated by 0.127 nm, the bond length. The

Question

1)

HCl consists of one H and Cl atom separated by 0.127 nm, the bond length. The Cl atom has a partial charge of -0.177e and the H atom has a partial charge of +0.177e, where e = 1.602x10-19 C is the electron charge.

What is the dipole moment of the molecule?

2)

Now the HCl molecule is placed near a sodium ion Na+with charge +1e. As shown in the figure, the distance between the Cl and Na atoms is d = 1.6 nm.

What is the magnitude of the total force on the HCl molecule due to the Na+ ion |FHCl|?

3)

Compare your previous answer to the force on a single Cl- ion with charge -1e due to the Na+ ion 1.6 nm away.

What is the ratio of the force on the Cl- ion to the force on the HCl molecule |FCl-/FHCl|?

Explanation / Answer

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