Lets number the reaction as 0, 1, 2, 3 from top to bottom
required reaction should be written in terms of other reaction
This is Hess Law
required reaction can be written as:
reaction 0 = -2 * (reaction 1) +2 * (reaction 2) +2 * (reaction 3)
So, ΔHo rxn for required reaction will be:
ΔHo rxn = -2 * ΔHo rxn(reaction 1) +2 * ΔHo rxn(reaction 2) +2 * ΔHo rxn(reaction 3)
= -2 * (1000.0) +2 * (250.0) +2 * (375.0)
= -750.0 KJ
Answer: -750. KJ
Nickel sulfite can be prepared by the following reaction: 2 Ni (s) + 1/4S8 (s) +...
Question 9 (0.5 marks) Nickel sulfite can be prepared by the following reaction: 2 Ni (s) + 1/4 S8 (s) + 3 O2 (g) → 2 NISO3 (s) 4,Hº = ? Use appropriate data from the following listing to determine A,Hº for this reaction. T: NISO3 (s) → NIO (s) + SO2 (g) AH° = 1000 kJ ll: % S8 (s) + O2(g) → SO2 (8) AH° = 250 kJ III: Ni (s) + O2(g) → NIO (s) AH =...
. (14 pts) Using the reactions in the data section, calculate AHrxn for the reaction 8 Ni(s) S&(s) +12 O2(g)8 NiSOs(s) Data: NiSos() >NiO(s)+ SO2(g) 1/4 S8(s) + 202(g) >2 SO2(g) Ni(s) + ½ O2(g) > NiO(s) AHm" = 156 kJ/mole ,no=-594 kJ/mole AHn 241 kJ/mole rxn
Given the standard enthalpy changes for the following two reactions: AH° =-479.4 kJ 2NIO(s) (1) 2Ni(s) + O2(g) AH° =-181.6 kJ (2) 2Hg(1) + O2(g)→2HgO(s) what is the standard enthalpy change for the reaction: Ni(s)+ Hg0(s) AH° =? (3) NiO(s) + Hg(1) kJ
The standard enthalpy change for the following reaction is - 52.3 kJ at 298 K. C2H4(g) — 2 C(s.graphite) + 2 H2(g) AH° = -52.3 kJ What is the standard enthalpy change for this reaction at 298 K? 2 C(s,graphite) + 2 H2(g) — C2H4(9) LLUCU The standard enthalpy change for the following reaction is -240 kJ at 298 K. Ni(s) + 1/2 O2(g) → Nio(s) AH° = -240 kJ What is the standard enthalpy change for the reaction at...
Consider the following reaction at equilibrium: NiO(s)+CO(g) 2 Ni(s) + CO2(g). Select all of the following that will shift the reaction to the left side. Addition of CO Removal of CO Addition of Ni Increase the volume. Removal of CO2 Addition of CO2 Removal of NIO Question 1 What is the expression for equilibrium constant for the following reaction? 2 H2S(g) + SO2(g) = 35(s) + 2 H2O(g) Kc= [HQ][S] [SO][H251 Kc= [HO] [502][H,872 Kc= [502] [H2 51 (H20 Kc=...
(10) 5. Use the given reactions and their enthalpies to determine the AHºrxn for the following reaction: 2 S(x) + 3 O2(g) → 2503(g) Hºrxn - ? Given Reactions and their Standard Enthalpies of Reaction: SO2(g) - S(s) + O2(g) 2 SO2(g) + O2(g) 2 S03(g) AHºrxn = +296.8 kJ Hºrxn = -197.8 kJ (10) 6. Use standard enthalpies of formation (AH°f) to determine AHºrxn for the reaction below. 2 CH3OH(1) + 3 02(g) → 2 CO2(g) + 4H2O(g)
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Consider the following reaction: NiO(s) Ni(s) + O2(g) (unbalanced) If oxygen gas is collected over water a 40.0 C and a total pressure of 745 mmHg, what volume of gas is collected for the complete reaction of 24.78 g of NiO?
Given the following data: S(s) + 02(8) -> SO3(g) AH = -395.2 kJ 2SO2(g) + O2(g) + 2503(g) AH = - 198.2 kJ Calculate AH for the reaction: S(s) + O2(g) SO2(g) +296.1 kJ -494.3 kJ -296.1 kJ 0 -197.0 kJ -593.4 kJ
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