need it fast!! Calculate the standard enthalpy change ∆Ho for the reaction below in kJ given the following standard enthalpy of formation values (kJ):   NH4NO3(s) = -365.3, N2O(g) = 81.6, H2O(g)= -241.8 NH4NO3(s) -> N2O(g) + 2 H2O(g)

Determine the enthalpy for the reaction shown below. CS2(l)  +  3O2(g)  -->  CO2(g)  +  2SO2(g)        ΔH = ? Given: C(graphite) +  O2(g)  -->  CO2(g)             ΔH = -393.5 kJ S(s)  +  O2(g)   -->  SO2(g)                          ΔH = -296.8 kJ C(graphite) + 2S(s)  -->  CS2(l)                ΔH = 87.9 kJ

Determine the enthalpy of reaction for HCl(g) + NaNO₂(s) → HNO₂(l) + NaCl(s) 2NaCl(s) + H₂O(l) → 2HCl(g) + Na₂O(s) ∆H° = -507.1 kJ/mol NO(g) + NO₂(g) + Na₂O(s) → 2NaNO₂(s) ∆H° = -427.0 kJ/mol NO(g) + NO₂(g) → N₂O(g) + O₂(g) ∆H° = -43.01 kJ/mol 2HNO₂(l) → N₂O(g) + O₂(g) + H₂O(l) ∆H° = +34.02 kJ/mol

A scientist measures the standard enthalpy change for the following reaction to be - 112.2 kJ: 2NO(g) + O2(g) → 2NO2 (g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of NO2 (g) is kJ/mol. Substance AH (kJ/mol) NO(g) O₂(g) 90.3 0.0

Using the standard enthalpies of formation provided, calculate the energy change for the combustion of methanol: 2 CH3OH(l) + 3 O2(g) ⟶⟶ 2 CO2(g) + 4 H2O(g) Standard Enthalpies of Formation (kJ/mol)CH3OH(l) = -238.4  CO2(g) = -393.5 H2O(g)  = -241.8

A scientist measures the standard enthalpy change for the following reaction to be 36.8 kJ: CO₂(g) + H₂(g) → CO(g) + H₂O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CO(g) is kJ/mol. Substance AH (kJ/mol) f CO₂(g) -393.5 H₂(g) 0.0 H₂O(g) -241.8

A scientist measures the standard enthalpy change for the following reaction to be -208.6 kJ :CO(g) + 3 H2(g)CH4(g) + H2O(g)Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CH4(g) is kJ/mol.

Find the enthalpy of reaction A,H° for the following reaction : 2 S(s) + 3 02(g) → 2 SO3(g) 1. S(s) + O2(g) → SO2(g) A;H°;(SO2,g) = -297KJ/mol 2. 2 SO3(g) → 2 SO2(g) + O2(g) AH°2 = 198kJ/mol %D a. -792 kJ/mol b. +792 kJ/mol c. +396 kJ/mol d. -396 kJ/mol

A scientist measures the standard enthalpy change for the following reaction to be 6.7 kJ : CO(g) + H,O(1)–CO;{g) + H2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CO(g) is kJ/mol.

Determine the enthalpy for the reaction shown below. CS2(l)  +  3O2(g)  -->  CO2(g)  +  2SO2(g)        ΔH = ? Given: C(graphite) +  O2(g)  -->  CO2(g)             ΔH = -393.5 kJ S(s)  +  O2(g)   -->  SO2(g)                          ΔH = -296.8 kJ C(graphite) + 2S(s)  -->  CS2(l)                ΔH = 87.9 kJ ( Change and add the equations to get the target equation)