
Concept explainers
a) The H-Cl bond length is 136pm. What would be the dipole moment of H-Cl be if the molecule were 100% ionic, H+Cl-?
Interpretation:
Assuming H-Cl to be 100% ionic its dipole moment is to be calculated. Its bond length is given as 136pm.
Concept introduction:
Dipole moment is defined as, µ=Qxr
Where, Q=Magnitude of the charge developed at either end of the dipole.
R=The distance between the charges
It is expressed in Debyes (D). 1 D=3.336x10-30C.m
To determine:
The dipole moment of H-Cl assuming it to be 100% ionic. Its bond length is given as 136pm.
b) The actual dipole moment of H-Cl is 1.08 D. What is the percent ionic character of the H-Cl bond.
Interpretation:
Actual dipole moment of H-Cl is given as 1.08 D. Its percent ionic character is to be calculated.
Concept introduction:
Assuming H-Cl to be 100% ionic and knowing the bond length, the dipole moment of H-Cl can be calculated. From the calculated value and the actual value of dipole moments the percent of ionic character of H-Cl can be determined.
To determine:
The percent ionic character of the H-Cl bond, if its actual dipole moment is 1.08 D.

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Chapter 2 Solutions
OWLv2 with Student Solutions Manual eBook, 4 terms (24 months) Printed Access Card for McMurry's Organic Chemistry, 9th
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