Question

A diatomic molecule has a dipole moment of 1.2

d. If its bond distance is 1.0 , what fraction of an electronic charge exist on each atom?

Answer 1

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Good Luck.

Answer 2

Answer : The fraction of electronic charge on exist on each end  will be, 25%

Explanation : Given,

Dipole moment = $1.2D=1.2\times 10^{-18}\text{ esu cm}$

conversion used : $1D=1\times 10^{-18}\text{ esu cm}$

Bond length = $1.0\AA=1.0\times 10^{-8}cm$

conversion used : $1\AA=1\times 10^{-8}cm$

Formula used :

$\text{Electronic charge}=\frac{\text{Dipole moment}}{\text{Bond length}}$

Now put all the given values in this formula, we get:

$\text{Electronic charge}=\frac{1.2\times 10^{-18}\text{ esu cm}}{1.0\times 10^{-8}cm}$

$\text{Electronic charge}=1.2\times 10^{-10}\text{ esu}$

Thus, the fraction of electronic charge on exist on each end  will be,

$=\frac{1.2\times 10^{-10}}{4.8\times 10^{-10}}=0.25=25\%$