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58. Calculate the standard enthalpy of formation of PCI, (g), given that AH' = -136.0 ks...
Calculate the AH formation of octane, CBH1B (), given that the enthalpy of combustion of octane is -5471 kl/mol and the standard enthalpies of formation of H20 () and CO2 (g) are -393.5 kJ/mol and -285.8 kJ/mol respectively.
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...
19. The standard enthalpy of formation for NH (g) is -46.1 kJmolCalculate AH for the reaction 2NH(g)N() 3H.() B 46.1 kJ (A) -92.2 kJ Di 922 kJ (C) 46.1 k 4. Calculate the change in enthalpy (in kJ per mole of CO) for the decomposition of sodium hydrogen carbonate from AH kJmol' NaHCO,(s) Na,CO,(s) H,O() CO (g) the standard enthalpies of formation: 2 NaHCO,(s) Na CO,(s)H0(g) -947.7 -1130.9 -241.8 -393.5 CO(e) (B -818.5 C -1766.2 (D) -3661.6 A 129.2 9....
A.Using standard heats of formation, calculate the standard enthalpy change for the following reaction. N2(g) + 3H2(g) = 2NH3(g) B.Using standard heats of formation, calculate the standard enthalpy change for the following reaction. CaCO3(s) = CaO(s) + CO2(g) C. A scientist measures the standard enthalpy change for the following reaction to be -2910.6 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...
4. Use a standard enthalpies of formation values below to determine the change in enthalpy for each of these reactions. Reaction: NaOH(s) + HCl(g) → NaCl(s) + H2O(g) Compound NaOH(s) HCl(g) NaCl(s) H2O(g) AHF (kJ/mol) -426.7 -92.3 -411.0 -241.8
Use a standard enthalpies of formation values below to determine the change in enthalpy for each of these reactions. SHOW WORK PLEASE. Reaction: NaOH(s) + HCl(g) →NaCl(s) + H2O(g) Compound ∆Hf (kJ/mol) NaOH(s) -426.7 HCl(g) -92.3 NaCl(s) -411.0 H2O(g) -241.8
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I) (15 points) Given the standard enthalpies of formation for the following substances (Table 2), determine the reaction enthalpy for the following reaction 45.433. ( O +1,220 kJ 0-1,220 kJ ·-967 kJ O +967 kJ 。+257 kS Substance l (kJ/mol) N2H4(g)+95. NO2(g) H2O(g) +33.1 -241.8 Table 2:
2. Given the following heats of formation, calculate AH for the reaction 2 CO(g) + 5 H2(g) → C2H6 (g) + 2 H2O(g) Compound AH°F (kJ/mol) Compound AH°F (kJ/mol) 52.28 C₂H6 (8) -84.68 C2H4 (8) -393.5 CO2(g) -241.8 H2O(g) -285.9 CO(g) -110.5 H2O(1)
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3. Calculate the standard enthalpy change, Hº, for the following reaction using standard enthalpies of formation. (1 point) 2C2H2(g) + 502(g) → 4CO2(g) + 2H20(1) Standard Enthalpies of Formation AH for C2H2(g) = +226.7 kJ/mol AHfor CO2(g) = -393.5 kJ/mol AH for H2O(l) = -285.8 kJ/mol
3) Calculate the AH,º for the following reactions based on the standard heat of enthalpy of each compound. AH° (kJ/mol): HCl(g) → -92.3, NaCl(s) →-411.0, NaOH(s) →-426.7. H2O(g) +-241.8 SO2(g) → -296.8, H2S(g) → -20.0, O2(g) → 0.0, H2O(l) →-285.8 a) NaOH(s) + HCl(g) ----> NaCl(s) + H2O(g) b) 2 H2S(g) + 3 O2(g) ---> 2 H2O(l) + 2 SO2(g)