Calculate the Dipole Moment for HF

Understanding Dipole Moment Calculation for HF

The dipole moment = [the charge magnitude at one of the ends (you can choose either one)] [the distance between charges]. It is usually calculated in SI units of Debye which represents the positive and negative charges separated by 0.2082 angestron. Thus, dipole moment = 0.917/0.2082 = 4.4044 debye.

Final answer: The dipole moment of HF can be calculated through the charge of an electron and bond length. Upon conversion into Debye, it's found to be approximately 4.4 D assuming the HF bond to be completely ionic.

Explanation: The dipole moment of a molecule depends on the difference in electronegativity between the atoms and the distance between the atoms' nuclei. In the case of HF (Hydrogen Fluoride), assuming the bond is completely ionic, we can calculate the dipole moment using the charge of an electron (1.60218 × 10^-19 C) and the bond length (converted to meters). The bond length of HF given is 0.917 angstroms, which is equivalent to 0.917 x 10^-10m or 9.17 x 10^-11m. This allows us to calculate the dipole moment in coulomb-meters (C.m) as (1.60218 × 10^-19 C) * (9.17 x 10^-11m) = 14.69 x 10^-30 Cm. We usually express dipole moments in Debyes. To convert C.m to Debye, we use the conversion factor where 1 Debye (D) = 3.336 x 10^-30 C.m, which gives us a dipole moment of approximately 4.4 D for HF.

Calculate the dipole moment for HF (bond length 0.917 å), assuming that the bond is completely ionic.

The dipole moment of HF can be calculated through the charge of an electron and bond length. Assuming the bond to be completely ionic, the dipole moment is found to be approximately 4.4 Debye.