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- Ka of HNO2 in 25 degree is 4.5 x 10^-4. (a) Write the equilibrium chemical reaction corresponding to Ka for nitrous acid (HNO2) at 25°C. (b) Calculate ΔG° for the dissociation of nitrous acid in solution using the given Ka value. (c) What is the value of ΔG at equilibrium? (d) When [H+] = 5.0 × 10^-2 M, [NO2^-] = 6.0 × 10^-4 M, [HNO2] = 0.20 M, what is the value of ΔG?involvedinthereaction? 4.Theenthalpyforthereactionbelowis-25kJ: 2A-A+B=B→2A-B-A a.Giventhefollowingbondenergies,findthemissingvalue. b. Sketch a potential energy diagram for this reaction:Find out feasible reaction in high temperature gas-phase from following reactions? explain reasoning in all cases- (a) CuBr2(g) + 2NaF(g) --> CuF2(g) + 2NaBr(g) (b) TiF4(g) + 2TiI2(g)--> TiI4(g) + 2TiF2(g) (c) CuI2(g) + 2CuF(g) --> CuF2(g) + 2CuI(g) (d) CoF2(g) + HgBr2(g) --> CoBr2(g) + HgF2(g)
- iven the data in the table below, ΔH°rxn for the reaction C2H5OH (l) + O2 (g) → CH3CO2H (l) + H2O (l) is ________ kJ. -79.0 -1048.0 -476.4 -492.6 The value of ΔH°f of O2 (g) is required for the calculation.Which of the following is a spontaneous reaction.? a. Rxn with ΔH =- 10Kj/mol ΔS= -5J/mol T= 300K b. NaCl +H20 -> NaOH + HCl 25C c. H20(l) -> H2O(s) Temp: 25C d. Dissolution of 100g of solid sugar in 100 mL ice tea. Consider following reaction: HgO (s) -> Hg(l) + ½ O2 (g) Delta H = +90.7 kj/mol. What quantity of heat in kj/mol is required to produce one mole HgO? Write your answer without units. Given the following data 2ClF(g) + O2(g) --> Cl2O(g) + F2O (g) Delta H= 167.4 kJ I 2ClF3(g) + 2O2(g) --> Cl2O(g) + 3F2 O (g) Delta H= 341.4 kJ II 2 F2(g) + O2(g) ---> 2F2O (g) Delta H= -43.4 kJ III Calculate the delta H in kJ for below reaction: ClF(g) + F2(g) ---> ClF3(g)Pls ignore the highlighted part __________ is reduced in thefollowing reaction: Cr2O72- + 6S2O32-+ 14H+→ 2Cr3+ + 3S4O62- + 7H2O
- In a unimolecular reaction with five times as much starting material asproduct at equilibrium, what is the value of Keq? Is ΔGo positive ornegative?At constant pressure and 25°C, what is ΔrH° for the following reaction2C2H6(g) + 7O2(g) → 4CO2(g) + H2O(l)if the complete consumption of 14.5 g of C2H6 liberates 752.3 kJ of heat energy?Calculate ΔG°rxn for the following reaction. The ΔG°f for each species is shown below the reaction. 4 ABO3 (g) + 5 B2A4 (l) → 7 B2 (g) + 12 A2O(l) ABO3 (g) B2A4 (l) B2 (g) A2O(l) ΔG°f (KJ/mol) -73.5 149.3 0 -237.1
- In the reaction: 2N2O5(g) --> 4N2O(g) + O2(g) Δ[N2O]/Δt = 0.0516 M/s. What is the value of - Δ[N2O5]/Δt ?What is the equilibrium-constant expression of the dissociation of H3AsO4 to H3O+ and AsO4 3- ? a. Ka = [H3O+] [AsO43−] [H3AsO4] b. Ka = [H3AsO4] [H3O+] [AsO43−] c. Ka = [H3O+]3 [AsO43−] [H3AsO4] d. Ka = [H3AsO4] [H3O+]3 [AsO43−] e. Ka = [H3O+]3 [AsO43−] [H3AsO4][H2O]im having trouble with this AP chemistry equilibrium problems could I have help?