Question

A diatomic molecule has a dipole moment of 1.2 D. If the bond legth is $1.0\times {10}^{-8}$ cm, what fraction of charge does exist each atom?

• A. 0.1
• B. 0.2
• C. 0.25
• D. 0.3

Answer 1

The correct option is C 0.25

$\mu =1.2D$ = $1.2\times 3.336\times {10}^{-30}Cm$

$\mu =q\times l$

$q=\frac{1.2\times 3.336\times {10}^{-30}}{{10}^{-10}}$

$q=4\times {10}^{-20}C$

Fraction of charge = $\frac{4\times {10}^{-20}}{1.6\times {10}^{-19}}$ = $0.25$