Question

Dipole moment of $HCl$ molecule is found to be 0.816 D. Assuming $HCl$ bond length to be equal to 1 $\stackrel{\circ }{A}$, then find the % ionic character of HCl molecule.

Answer 1

We know, $1Debye=3.336\times {10}^{-30}Cm$

$\%ioniccharacter=\frac{0.816\times 3.336\times {10}^{-30}}{1.6\times {10}^{-19}\times {10}^{-10}}\times 100=17.01\%$