Given:
ΔHo rxn = -172.0 KJ/mol
Hof(NH3(g)) = -46.11 KJ/mol
Hof(NH4Cl(s)) = -314.43 KJ/mol
Balanced chemical equation is:
HCl(g) + NH3(g) ---> NH4Cl(s)
ΔHo rxn = 1*Hof(NH4Cl(s)) - 1*Hof( HCl(g)) - 1*Hof(NH3(g))
-172.0 = 1*(-314.43) - 1*Hof(HCl(g)) - 1*(-46.11)
Hof(HCl(g)) = -96.32 KJ/mol
Answer: -96.32 KJ/mol
A scientist measures the standard enthalpy change for this reaction to be - 172.0 kJ/mol: HCl(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 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
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
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 enthaply change for the following reaction to be 80.4kJ NH4Cl(aq)=NH3(g)+HCl(aq) Based on this value and the standard enthalpies of formation for the other substances, the standard enthaply of formation of HCl (aq) 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 80.4 kJ. NH Cl(aq) +NH (9) + HCl(aq) G Based on this value and the standard enthalpies of...
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 -87.5 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.