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AH = -390 kJ AH = -745 kJ 13. Given the following thermochemical equations: IF (g)...
14. Baking soda (NaHCO3) can be decomposed when heated, as shown. 2 NaHCO3 (s) - Na2CO3 (s) + CO2(g) + H2O (9) Use heats of formation to determine the value of AH for this reaction. (8 points)
Write the thermochemical equation that would be used to represent the standard heat of formation of sodium bicarbonate, NaHCO3(s). Na(s) + H2(g) + C(s) + H20(1) NaHCO3(s) AH° = -947.7 kJ/mol Na2O(s) + H2O(g) + CO2(g) + O2(g) + NaHCO3(s) AH = -947.7 kJ/mol O Na(s) + 0.5H2(g) + C(s) + 1.502(g) + NaHCO3(s) AH = -947.7 kJ/mol Na2CO3(s) + H20(1) - NaHCO3(s) AH = -947.7 kJ/mol
Using the equations below: C(s) + O2(g) → CO2(g) AH = -390 KJ Mn(s) + O2(g) → MnO2(s) AH = -520 KJ What is the AH (in K)) for the following reaction? MnO2(s) + C(s) + Mn(s) + CO2(g) : AH = ? Hint: Use Hess's law O A. 910 KJ B. -130 KJ C. 130 KJ OD. -910 KJ
Calculate the value of AH° for the reaction 2 C2H2 () + 502 () 4002) + 2 H20 (1) given the following thermochemical equations: AH° = - 242 kJ AH° = - 394 kJ H2(g) + 4202) → H20 (8) C(s) + O2(%) + CO2(8) 2 C(s) + H2(g) → C2H2 (6) H20 () → H30Ⓡ AH° = +227 kJ AH° = +44 kJ TO - 907 kJ 0 - 2602 kJ 0 - 2514 kJ - 1694 kJ
Calculate AH for the following reaction, CaO(s) + CO2(g) CaCO3(s) given the thermochemical equations below. 2 Ca(s) + O2(g) + 2 Cao(s) AH = -1270.2 kJ C(s) + O2(g) CO2(g) AH = -393.5 kJ 2 Ca(s) + 2 C(s) + 3 O2(g) → 2 CaCO3(s) AH = -2413.8 kJ 0-750.1 kJ O +350.2 kJ 0 -178.3 kJ O +2870.6 kJ
4) Given the thermochemical equations: (3 points) Br2(l) + F2(g) → 2BrF(g) Br2(1) + 3F2(g) → 2BrF3(g) AH°= -188 kJ/mol AH°= -768 KJ/mol Calculate the AH°rxn for the reaction BrF(g) + F2(g) → BrF3(9)
Given the thermochemical equations A(g) — Bg AH = 70 kJ B(g) — C(g) AH = -140 kJ find the enthalpy changes for each reaction 3 A(g) — 3Bg AH = B(g) Ag) AH = A(g) -C(O) AH =
Review Problem 6.086 Given the following thermochemical equations, 2Cu + S(s) - Cu2S(s) AH° = -79.5 kJ S(s) + O2(g) → SO2(9) AH = -297 kJ Cu2S(s) + 202(g) → 2CụO(s) + SO2(g) AH° = -527.5 kJ calculate the standard enthalpy of formation (in kilojoules per mole) of Cuo(s). AH°(Cuo(s)) - kJ/mol The number of significant digits is set to 3; the tolerance is +/-2% Show Work is REQUIRED for this question: Open Show Work Review Problem 6.087 Given the...
Determine AH for the reaction NO(g) + V20 (9) NO.(9) AH using the following thermochemical equations: V2N,(9) +0,(9) - NO,(9) 1/2N,(9) + 720,(g) – NO(9) AH = +33.8 kJ AH = +90.37 kJ
19. Calculate AH° for the conversion of graphite into diamond from the following thermochemical equations. C(s, graphite) + O2(g) — C(s, diamond) + O2(g) CO2(g) AH° = -393.5 kJ + CO2(g) AH' = -395.9 kJ e uso -395.9 kJ +393.5 kJ -789.4 kJ +2.4 kJ -2.4 kJ