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 -30 C.m To determine: The dipole moment of H-Cl assuming it to be 100% ionic. Its bond length is given as 136pm.

Question

For each of the following covalent bonds: (a) use the symbols δ+ and δ- to indicate the direction of polarity (if any).(a) C-F; (b) N-Br; (c) B-C; (d) Si-H(b) Rank the following covalent bonds in order of increasing polarity. (i) C-H, O-H, N-H; (ii) C-N, C-O, B-O; (iii) C-P, C-S, C-N

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Question

Chapter 2.SE, Problem 31AP

Interpretation Introduction

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.

Interpretation Introduction

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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