# Calculate the dipole moment of HBr molecule if the bond length is 1.2476 A° .

Q: Calculate the dipole moment of HBr molecule if the bond length is 1.2476 A° .

Solution: μ = q × r

= (1.6023 × 10–19 C) (1.2476 × 10-10 m)

= 1.99 × 10–29 C m

$\large = \frac{1.99 \times 10^{-29}}{3.33 \times 10^{-30}} = 5.99 D$