Given:
ΔHo rxn = -573.8 KJ/mol
Hof(O2(g)) = 0.0 KJ/mol
Hof(CO2(g)) = -393.509 KJ/mol
Hof(H2O(l)) = -285.83 KJ/mol
Balanced chemical equation is:
H2CO(g) + O2(g) ---> CO2(g) + H2O(l)
ΔHo rxn = 1*Hof(CO2(g)) + 1*Hof(H2O(l)) - 1*Hof( H2CO(g)) - 1*Hof(O2(g))
-573.8 = 1*(-393.509) + 1*(-285.83) - 1*Hof(H2CO(g)) - 1*(0.0)
Hof(H2CO(g)) = -105.539 KJ/mol
Answer: -105.54 KJ/mol
A scientist measures the standard enthalpy change for the following reaction to be -573.8 kJ: H.CO(g)...
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
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
1. A scientist measures the standard enthalpy change for the following reaction to be -2913.0 kJ: 2C2H6(g) + 7 O2(g)->4CO2(g) + 6 H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O(g) is kJ/mol. 2. A scientist measures the standard enthalpy change for the following reaction to be -138.6 kJ : H2(g) + C2H4(g)->C2H6(g) Based on this value and the standard enthalpies of formation for the other substances, the...
A scientist measures the standard enthalpy change for the following reaction to be -2847.0 kJ: 2C2H6(g) + 7 02(g) —4CO2(g) + 6H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CzH6(g) is kJ/mol. A scientist measures the standard enthalpy change for the following reaction to be -15.0 kJ : Ca(OH)2(aq) + 2 HCl(aq) +CaCl(s) + 2 H20(1) Based on this value and the standard enthalpies of formation for...
202.8 A scientist measures the standard enthalpy change for the following reaction Fe304) + 4 Hy()_3Fe(s) + 4 H 0(e) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of Fe,O_is kJ/mol. Submit Answer Retry Entire Group B more group attempts remaining
A scientist measures the standard enthalpy change for the following reaction to be 2752.8 kJ : 6CO2(g) + 6H2O(1) C6H12O6 + 6 O2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CH1:05 is kJ/mol A scientist measures the standard enthalpy change for the following reaction to be 53.9 LJ: CO2(g) + H2(g)— CO(g) + H2O() Based on this value and the standard enthalpies of formation for the other...
A.A scientist measures the standard enthalpy change for the following reaction to be -2932.6 kJ : 2C2H6(g) + 7 O2(g)4CO2(g) + 6 H2O(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of CO2(g) is kJ/mol. B.A scientist measures the standard enthalpy change for the following reaction to be -138.9 kJ : H2(g) + C2H4(g)C2H6(g) Based on this value and the standard enthalpies of formation for the other substances, the standard...
A scientist measures the standard enthalpy change for the following reaction to be - 87.7 kJ : 2HBr(g) + Cl2(g)— 2HCl(g) + Bra(s) 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 CH4() + H2O(g)_3H2(g) + CO(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O() is kJ/mol Given the standard enthalpy changes for...
A scientist measures the standard enthalpy change for the following reaction to be 2853.6 kJ : 6CO2(g) + 6 H2O(l)C6H12O6 + 6 O2(g) Based on this value and the standard enthalpies of formation for the other substances, the standard enthalpy of formation of H2O(l) is ?kJ/mol.