The Clausius-Clapeyron equation is used to determine the relationship between the vapor pressure and temperature of a substance. However, it is not the most suitable equation for calculating the melting and boiling points of a substance directly. Instead, we can use the given information to estimate the melting and boiling points.The melting point can be estimated using the heat of fusion Hfus and the standard entropy change for phase transition S :Tm = Hfus / SWhere Tm is the melting point in Kelvin.Given that the heat of fusion for NaCl is 28.9 kJ/mol, we need to convert it to J/mol:Hfus = 28.9 kJ/mol * 1000 J/kJ = 28900 J/molNow we can calculate the melting point:Tm = 28900 J/mol / 72.14 J/K/mol = 400.4 KThe boiling point can be estimated using the heat of vaporization Hvap and the standard entropy change for phase transition S :Tb = Hvap / SGiven that the heat of vaporization for NaCl is 163.0 kJ/mol, we need to convert it to J/mol:Hvap = 163.0 kJ/mol * 1000 J/kJ = 163000 J/molNow we can calculate the boiling point:Tb = 163000 J/mol / 72.14 J/K/mol = 2259.6 KSo, the estimated melting point of Sodium Chloride NaCl is 400.4 K, and the estimated boiling point is 2259.6 K.