5. For the reaction 2C6H5COOH(s) + 1302(g) 50 °C. PO3 - 12CO2(g) +6H2O(l), calculate A,H° at
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![5.
For the reaction 2C6H5COOH(s) + 1302(g)
50 °C. PO3
-
12CO2(g) +6H2O(l), calculate A,H° at](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4524586d-121c-4d3d-a7aa-64c5e2314d0a%2F8a94819c-8296-4680-9441-c9a06538f496%2Fg8xr364_processed.jpeg&w=3840&q=75)
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- 7. Sulfur hexafluoride, SF6(g), one of the densest known gases, is used to insulate electrical equipment, including high-voltage wires. Determine the enthalpy change of the reaction: (3 marks) 40 H2S(g) + 4 F2(g) → 2 HF(g) + SF6(g) Given the following 3 reactions: lotal SHOW 1) ½ H2(g) + ½ F2(g) → HF(g) A;H° = -273 kJ %3D ergy Chernists in en halpy is 2) 8 S8(9) + 3 F2(2) → SF6g) dencted 3) H2(g) + '/8 S8(s) → H2S(g) A:H° = -1220 kJ %3D unit of nge in mes h A;H° = -21 kJ mad) %3Di. Write the net ionic equation for this reaction ii. Identify the oxidising and reducing agents from the above reaction 4. (a) Give few comment notes on Different dissociation constants of weak acids observed from the following diagram 14 13- 12 11- K= 1010 K= 10 K= 10 K= 107 K= 10 K= 10 K= 10 K= 10 10 8 pH 6 3 2 1 0.000 0 005 0010 0015 0020 0.025 VoA certain first order reaction has the rate law Rate = k[A] with k=0.0068 sec-1. If the initial concentration of A is 0.75 M, what will be the concentration of A after 1 minute? What is the half-life for this reaction? How much time will it take for 75% of A to react? How much A will be left after the passage of three half-lives? What is the initial rate of the reaction?
- For the reaction E + S ES, what is the [E] if [S] = 0.18 mM, [ES] = 133 uM, and the Kd = 15 uM? 11,000 UM 20 uM 11 uM O 180 UMThe reaction quotient is Q=1.6×10-26 Part B What pH is needed to produce this value of Q if the concentration and pressure values are [Br2]=2.50×10−4M , [Br−]=11.65M, [SO42−]=9.50M, and PSO2=3.50×10−5atm ? Express your answer numerically to two decimal places.27. The standard-state free energy of hydrolysis for acetyl phosphate in 1,3-Bisphosphoglycerate is 1,3-Bisphosphoglycerate + H₂O 3-phosphoglycerate + Pi AGI-49.6 kJ/mol. Determine the free energy change for 1,3-Bisphosphoglycerate hydrolysis in a solution of 5.4 mM 3-phosphoglycerate, 0.0054 M inorganic phosphate, and 20 nM 1,3-Bisphosphoglycerate.
- 12. Find the ΔH for the reaction below, given the following reactions and subsequent ΔH values: b. FeO(s) + CO(g) ⟶⟶ Fe(s) + CO2(g) ΔH = __________ 3Fe2O3(s) +CO(g) ⟶⟶ 2Fe3O4 +CO2 (g) ΔH = -68.26 kJ Eq 1 Fe2O3(s) + 3CO(g) ⟶⟶ 2Fe(s) + 3 CO2(g) ΔH = -23.44 kJ Eq 2 Fe3O4(s) + CO(g) ⟶⟶ 3FeO(s) + CO2(g) ΔH = +21.79 kJ Eq 3In the electrolysis of aqueous sodium bromide, there are two possible anodic reactions: *2H2O(l) ——-> 02(g) + 4H+(aq) + 4e–, E° = 1.23V2Br–(aq) ——–> Br2(g) + 2e-2, E° = 1.08 VWhich reaction occurs at anode and why?A 0.578-g saltwater sample was titrated with 1.864 g AgNO3 solution to reach the endpoint of the reaction. Calculate the following by showing all necessary solutions: 1. mol AGNO3 if the AGNO3 solution was prepared by dissolving 5.0 g of AgNO3 in distilled water until 100 ml is reached. (MW AgNO3 = 169.87 g/mol) 2. % Cl in the saltwater sample (MM CI = 35.45 g Cl /mol CI" )
- The decomposition of various substituted benzyl azoxyarenesulfonates in trifluoroethanol was studied. The overall reaction is shown below F3C OH CF3 HO,S + N20 The decomposition of various substituted benzyl azoxyarenesulfonates in trifluoroethanol was studied. The overall reaction is shown below F,C OH HO,S + N,0 Y kobs (S ') 3-CI CH3 3.1 x 10-7 4-CI CH3 2.3 х 10-6 3-CH3 4-CH3 4-OCH3 CH3 CHs 4.7х 10-6 CH3 7.6х 10-6 CH3 6.0 x 10-5 1.7 x 10-3 4-CH OCH3 4.24 x 10-5 4-CH3 4-CH3 4-CH3 CH3 Br 6.0 x 10-5 1.91 x 10-4 CN 4.65 x 10-4 a. Using the data provided, prepare Hammett plots to quantify the effects of the substituents X and Y on the reaction's rate. Attach them to your problem set. b. Based on your Hammett analysis, propose a complete, curved-arrow mechanism for this reaction. Use a sentence or two to explain how your Hammett analyses support your proposed mechanism.ver is given. A +B C+ D 1) Calculate AG for the above react un and indicáte whether the reaction is favorable or unfavorable [A] = 0.9 M 20°C AG° = 4 KJ/mol %3D [B] = 15mM [C] = 4mM [D] = 3 M R= 8.314 J/moleK %3D %3D 4.7 and explain how you know.Consider the reaction A + 2B ----> C. If the molar mass of C is twice the molar mass of A, what mass of C is produced by the complete reaction of 10.0 g A?(a) 10.0 g(b) 30.0 g(c) 60.0 g
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