6. Answer the following questions related to HBr(l) and HF(l). โ Intermolecular Forces, Enthalpy of Vaporization, Atomic Structure Chemistry Question
Problem Context
- Answer the following questions related to HBr(l) and HF(l).
a.
(a) In the following table, list all of the types of intermolecular forces present in pure samples of HBr(l) and HF(l).
b(i).
(b) The enthalpy of vaporization, ฮH_vap, for each liquid is provided in the following table.
(i) Based on the types and relative strengths of intermolecular forces, explain why ฮH_vap of HF(l) is greater than that of HBr(l).
b(ii).
(ii) Calculate the amount of thermal energy, in kJ, required to vaporize 6.85 g of HF(l).
c.
(c) Based on the arrangement of electrons in the Br and F atoms, explain why the bond length in an HBr molecule is greater than that in an HF molecule.
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