Using the standard enthalpies of formation calculate the standard enthalpy of reaction for the combustion of propane: C3H8(g) + 5O2 → 3 CO2(g) + 4H2O
CO2(g) = -393.5 kJ/mol O2 = 0 kJ/mol H2O = -284 kJ/mol C3H8(g) = -272.5 kJ/mol

Usa Test prep

What is the ph of a solution that has a hydrogen ion concentration of 1.0 * 10 -9 m?

What volume would 2.25 moles of ne has occupy at stp?

Which statement best summarizes the importance of ernest rutherford’s gold foil experiment? it proved that all of john dalton’s postulates were true. it verified j. j. thomson’s work on the atomic structure. it showed that an electron circles a nucleus in a fixed-energy orbit. it showed that a nucleus occupies a small part of the whole atom.