What is the vapor pressure of ethanol at 50.0ºC?

This is with the normal boiling point of 78.3ºC and with the ΔHvap being 39.3 kJ/mol. The Clausius-Clapeyron Equation is log[P2-P1] = [ΔHvap/19.15 J mol K-1] x [1/T1 - 1/T2].