Which of the following reactions most favors products? REACTION 2 SO22) +O2(g) 2 2s0:(2) 2.6 x 102 2 NO) +O2e) 2NO%) 6.4x105 II 2C0e) +02(e) 2 2COe) 2 2002(g) 2.5x 1015 III 2 H2(8) + O26«) 2 2H2Og) 1.7x1027 IV а. I b. II С. II d. IV |3
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- 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 -237.1O(g) +e- O-(g) ∆Ho= -142 kJmol-1 O+2e- O2-(g) ∆Ho= + 712 kJ mol-1Calculate ∆Hofor the reaction : O- + e- O2-(g) .Order: Ceftazadine 1.5 g IV q.12 h for 5 days Supply: Ceftazadine 2 g vial Directions: Reconstitute with 2 mL NS to yield 1g/mL Give: __________ mL
- 23. The equation below shows the burning of Acetylene in air:C2H2(g) + 5/2 O2(g) → 2CO2(g) + H2O(g) ΔH ̊rxn = - 1255.8 kJ Find ΔH ̊f of C2H2(g) The following is given: ΔH ̊f = CO2(g) = -393.5 kJ/mol ΔH ̊f = H2O(g) = -241.8 kJ/mol ΔH ̊f of O2(g) = 0(NH4)2Cr2O7 (s) --> Cr2O3 (s) + 4 H2O (g) + N2 (g) The compound Ammonium Dichromate, (NH4)2Cr2O7, will decompose into Cr2O3, H2O, and N2, when it is heated vigorously. However, it is almost impossible to acquire a pure sample of (NH4)2Cr2O7 , instead (NH4)2Cr2O7 is usually contaminated with some Cr2O3 in its container. To determine how much Cr2O3 is in the container, a student heats a sample of the mixture, and collects the water vapor using a drying agent. The following table shows the data the student recorded during the heating of a sample of the mixture. Mass of Empty Test Tube 14.66 g Mass of Test Tube and Mixture before Heating 16.92 g Mass of Drying Agent Before Reaction 2.26 g Mass of Drying Agent and Water After Reaction 2.65 g a) Calculate the grams of (NH4)2Cr2O7 present in the mixture in the test tube before the mixture was heated. b) Determine the mass percent of (NH4)2Cr2O7 in the mixture. c) If the student spilled some of the mixture out of the test tube…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)
- Two successive reactions, D→E and E→F, haveyields of 48% and 73%, respectively. What is the overall percentyield for conversion of D to F?Calculate ΔS°rxn for the following reaction. The S° for each species is shown below the reaction. 4 NH3(g) + 5 O2(g) → 4 NO(g) + 6 H2O(g) S°(J/mol • K) 192.8 205.2 210.8 188.8The deltaHs of cobalt (II) nitrate is +47.7 kJ/mol. What is the deltaHf of solid cobalt (II) nitrate? deltaHf(NO3-(aq)) = -205.00 kJ/mol deltaHf(Co2+(aq)) = -58.2 kJ/mol
- The activation energy for the gas phase decomposition of t-butyl propionate is 164 kJ. C2H5COOC(CH3)3 --> (CH3)2 C = CH2+ C2H5COOH The rate constant at 542 K is 1.03 * 10-3 s-1 . The rate constant will be 0.0150 s-1 at K. Submit AnswerInstantaneous rates for the reaction of hydroxide ion with Cv+ can be determined from the slope of the curve in Figure 11.3 at various concentrations. They are (1) At 4.0 105 mol/L, rate = 12.3 107 mol L1 s1 (2) At 3.0 105 mol/L, rate = 9.25 107 mol L1 s1 (3) At 2.0 105 mol/L, rate = 6.16 107 mol L1 s1 (4) At 1.5 105 mol/L, rate = 4.60 107 mol L1 s1 (5) At 1.0 105 mol/L, rate = 3.09 107 mol L1 s1 (a) What is the relationship between the rates in (1) and (3)? Between (2) and (4)? Between (3) and (5)? (b) What is the relationship between the concentrations in each of these cases? (c) Is the rate of the reaction proportional to the concentration of Cv+? Explain your answer.400 cm3 of 0.2M h2so4 is mixed with 600 cm3 of 0.1M naoh solution. Is this reaction endothermic or exothermic? please answer fast i give upvote