H0rxn
= [
H0f(CO2)
+
H0f(H2O)]
- [
H0f(H2CO)
+
H0f(O2)]
- 576.0 = [-393.509 + H0f(H2O)]
- [-116 + 0 ]
-576 .0 = -393.509 + H0f(H2O)
+ 116.0
-576.0 = - 277.509 + H0f(H2O)
H0f(H2O)
= - 298.491 kJ/mol
Use the References to access important al etneeded for this ญ"tion. A scientist measures the standard...
Use the References to access important values if needed for this question. A scientist measures the standard enthalpy change for the following reaction to be - 174,0 kJ HC (9) + NH3(g)—NH CH(s) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of NH() is mol deedele Submit Answer Retry Entire Group 2 more group attempts remaining
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Ricrencesi Use the References to access important values if needed for this question. A scientist measures the standard enthalpy change for the following reaction to be -234.6 kJ 2502(g) + O2(g) 2503(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of SO3(e) is kJ/mol Submit Answer Retry Entire Group 2 more group attempts remaining TReview Topics [References Use the References to access important values if needed for...
Review Topics References Use the References to access important values if needed for this question A scientist measures the standard enthalpy change for the following reaction to be -903.5 kJ: 2NH,(e) +3 N2O(g) 4N,(s) + 3 H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H,O() is kJ/mol. Submit Answer Retry Entire Group group attempts remaining
References Use the References to access important values If needed for this question. A scientist measures the standard enthalpy change for the following reaction to be -913.8 kJ : Fe2O3(s) + 2 Al(s) A12O3(s) + 2 Fe(s) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of AlzO3(s) is kJ/mol. Submit Answer
References Use the References to access important values if needed for this question. A scientist measures the standard enthalpy change for the following reaction to be -87.1 kJ : 2HBr(g) + Cl2(g)—>2HCl(g) + Br2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of HCl(g) is kJ/mol. Submit Answer
Review Topics [References] Use the References to access important values if needed for this question A scientist measures the standard enthalpy change for the following reaction to be - 819.9 kJ: CH,(g) + 2 02(8) CO2(g) + 2 H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CO (@is m o Submit Answer Retry Entire Group 2 more group attempts remaining
A scientist measures the standard enthalpy change for this reaction to be - 172.0 kJ/mol: HCl(g) + NH3(g) →NH CH(s) Based on this value and the standard formation enthalpies for the other substances, the standard formation enthalpy of HC (g) is kJ/mol Submit Answer Retry Entire Group 2 more group attempts remaining
A scientist measures the standard enthalpy change for the following reaction to be -377.0 kJ P4010(s)6 H20I4H3PO4(aq) + Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H20) is kJ/mol Submit Answer Retry Entire Group 4 more group attempts remaining
A scientist measures the standard enthalpy change for the following reaction to be -573.8 kJ: H.CO(g) + O2() CO() + H2O(1) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O() is mol Submit Answer Retry Entire Group 3 more group attempts remaining
A scientist measures the standard enthalpy change for the following reaction to be -79.7 kJ: 2HBr(g) + Cl2(9)—2HCl(g) + Br2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of Br2(g) is kJ/mol. Submit Answer Retry Entire Group 9 more group attempts remaining