Chemistry Practice Problems Hess's Law Practice Problems Solution: Calculate the standard molar enthalpy of formation...

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# Solution: Calculate the standard molar enthalpy of formation of NO(g) from the following data:N2(g) + 2O2 ⟶ 2NO2(g) ΔH°298 = 66.4 kJ2NO(g) + O2 ⟶ 2NO2(g) ΔH°298 = −114.1 kJ

###### Problem

Calculate the standard molar enthalpy of formation of NO(g) from the following data:
N2(g) + 2O2 ⟶ 2NO2(g) ΔH°298 = 66.4 kJ
2NO(g) + O2 ⟶ 2NO2(g) ΔH°298 = −114.1 kJ

Hess's Law

Hess's Law

#### Q. Calculate ΔH°298 for the process Co3O4(s) ⟶ 3Co(s) + 2O2(g) from the following information:Co(s) + 1/2O2(g) ⟶ CoO(s)  ΔH°298 = −237.9kJ 3CoO(s) +1/2O2...

Solved • Tue Oct 16 2018 16:40:25 GMT-0400 (EDT)

Hess's Law

#### Q. The following sequence of reactions occurs in the commercial production of aqueous nitric acid:4NH3(g) + 5O2(g) ⟶ 4NO(g) + 6H2O(l)           ΔH = −907...

Solved • Tue Oct 16 2018 16:32:05 GMT-0400 (EDT)

Hess's Law

#### Q. Calculate ΔH for the process Hg 2Cl2(s) ⟶ 2Hg(l) + Cl2(g) from the following information:Hg(l) + Cl2(g) ⟶ HgCl2(s) ΔH = −224 kJHg(l) + HgCl2(s) ⟶ Hg2C...

Solved • Tue Oct 16 2018 16:29:07 GMT-0400 (EDT)

Hess's Law

#### Q. Reaction of gaseous ClF with F 2 yields liquid ClF3, an important fluorinating agent. Use the following thermochemical equations to calculate ΔH°rxn f...

Solved • Tue Oct 16 2018 11:03:15 GMT-0400 (EDT)