The left ventricular ejection fraction (LVEF) test rate is increasingly used as a quality of care indicator for pa-. tients with heart failure. Our study produced benchmark LVEF test rates in a Medicare fee-for-service.
Toluene is a very good solvent because, unlike water, it can dissolve many organic compounds. In many commercial products, toluene is used as a solvent that is present in paint thinners, nail polish remover, glues, and correction fluid. Toluene has many uses in different industries.
The standard enthalpy of combustion of toluene is - 3910 kJ/mol. this is the value for the substance quoted in data tables which are nothing to do with this question. The /mol refer to toluene.This is the amount of heat you could expect to be released when 1 mole of toluene is burned in oxygen.t is nothing to do with the calorimeter. The heat released by the (1.55/92.134) mole of toluene will be 65.779 kJ. In your calculation 1.55g = 142.81g is incorrect-I think you have mistaken 1.55 as a number of moles and multiplied it by the mass of 1 mol (1.55 x 92.134 = 142.81g.