What is the enthalpy of reaction for the neutralization reaction occurring between dilute Ba(OH)2(aq) and dilute HNO3(aq)? Values of ΔfH° from data tables are given below.
Hint: Balance the equation so the coefficients are the lowest possible set of whole numbers.
Species ΔfH°(kJ/mol)
Ba2+(aq) -537.6
OH-(aq) -230.0
H+(aq) 0
NO3-(aq) -205.0
H2O(l) -285.8
◦ +426.0 kJ/mol
◦ -111.6 kJ/mol
◦ -426.0 kJ/mol
◦ -571.6 kJ/mol
◦ -460.0 kJ/mol