The thermochemical equation for the combustion of hexane is…

The thermochemical equation for the combustion of hexane is shown below.                  C6H14(g)  +  19/2 O2(g)  →  6 CO2(g)  +  7 H2O(g)                ΔH° = -4163 kJ What is the enthalpy change for the combustion of 2.50 g C6H14?  Molar mass of C6H14 = 86.18 g/mol

A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calo…

A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction.  If the temperature rose from 35.0 to 76.0°C and the heat capacity of the calorimeter is 23.3 kJ/°C, what is the value of DEcombper mol of ethanol?  The molar mass of ethanol is 46.07 g/mol.   C2H5OH (l) + 3O2 -> 2CO2(g) + 3H2O(g)