A volume of 84.0mL 0.25 M Hydrogen Bromide is titrated with 0.50 M Potassium Hydroxide. 42.0mL of KOH is added further then calculate the pH for this solution?
Heat of fusion of Methane =0.84 kJ/mol, heat of vaporization =9.2 kJ/mol. calculate approximately the value for the heat of sublimation of methane