Question

A diatomic molecule has a dipole moment of $1.2D$. If its bond distance is $1.0\mathring{A}$, what fraction of an electronic charge exists on each atom? Plan based on dipole moment of $1.2D$, electronic charge is calculated. This value is compared to theoretical value of charge $(=4.8\times {10}^{-10}esu)$.

(If answer is $\frac{x}{y}$. add $x$ and $y$)

Answer 1

For a diatomic molecule dipole moment $\mu =e\times d$
$\therefore$ electronic charge $=\frac{\mu }{d}=\frac{1.2\times {10}^{-10}esucm}{1.0\times {10}^{-8}cm}$
$=1.2\times {10}^{-10}esu$
actual value of electronic charge $=4.8\times {10}^{-10}esu$
$\therefore$ fraction of the electronic charge $=\frac{1.2\times {10}^{-10}}{4.8\times {10}^{-10}}=0.25$