Question

when nacl molecule is formed one electron is transferred from na atom to cl atom. the equilibrium internuclear distance between na+ and cl- ions is 2.75 × 10-10. the dipole moment of nacl molecule is
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Answer 1

Answer:

Let the given separation between the ions be 2.75*10-8 cm

Net charge on chloride ion, q1 = 1.6*10-19 C

Net charge on sodium ion, q2 = 1.6*10-19 C

F= kq1q2/r2(sq.)

F = 9*10 9 * (1.6*10-19)2 / (2.75*10-8)2

F = 3.05*10-9 N (Answer)