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a. write the equilibrium expression and for the balanced reaction: 2 SO_3 (g) leftarrow and rightarrow...
For the following equilibrium: N_2(g) + H_2(g) rightarrow NH_3(g) delta H= -386 kJ/mole Predict the direction...
For the following equilibrium: N_2(g) + H_2(g) rightarrow NH_3(g) delta H= -386 kJ/mole Predict the direction the equilibrium will shift if: N_2 is added? H_2 is removed? NH_3 is added? NH_3 is removed? the volume of the container is decreased? the pressure is increased by adding Argon gas? the reaction is cooled? equal number of moles of H_2 and NH_3 are added? a catalyst is added The equilibrium constant for the following reaction is 5.0 at 400 degree C. CO_(g)...
Balance the following gas-phase reaction and write its reaction quotient, Q_c: SO_3(g) SO_2(g) + O_2(g). Include...
Balance the following gas-phase reaction and write its reaction quotient, Q_c: SO_3(g) SO_2(g) + O_2(g). Include the physical states of all reactants and products in your balanced equation.
Consider the following reaction: Ca(s) + 2 H_2O(l) rightarrow Ca(OH)_2(s) + H_2(g) Calculate the heat of...
Consider the following reaction: Ca(s) + 2 H_2O(l) rightarrow Ca(OH)_2(s) + H_2(g) Calculate the heat of reaction based on the following information: 2H_2(g) + O_2(g) rightarrow 2 H_2O(l) DeltaH = -572 kJ/mol CaO(s) + H_2O(l) rightarrow Ca(OH)_2(s) DeltaH = -64 kJ/mol CaCO_3(s) rightarrow CaO(s) + CO_2(g) DeltaH = +178.1 kJ/mol 2 Ca (s) + O_2(g) rightarrow 2 CaO(s) DeltaH = -1270 kJ/mol 13. Acetylene is used in blow torches, and bums according to the following equation: 2 C_2H_2(g) + 5...
Which of the following molecules or ions is NOT polar? PCl_3 I_3^- H_2O N_2O SO_2 An...
Which of the following molecules or ions is NOT polar? PCl_3 I_3^- H_2O N_2O SO_2 An iron ore, magnetite, contains only iron and oxygen. In refining 100.0g of the ore, 72.35 g of iron are obtained. What is the empirical formula of the ore? Fe_2O_3 Fe_2O_4 FeO_2 FeO Fe_2O_5 Fe_2O_2(s) and powdered aluminum can react with great output of heat to form molten iron and Al_2O_3 when this reaction equation is balanced, what are the stoichiometric coeeficients in the following...
A chemist measures the energy change Delta H during the following reaction: 2H_2I(l) rightarrow 2H_2(g) +...
A chemist measures the energy change Delta H during the following reaction: 2H_2I(l) rightarrow 2H_2(g) + O_2(g) Delta H = 572. kJ Use the information to answer the following questions. This reaction is ... exothermic endothermic Suppose 94.8 g of H_2O react. Will any heat be released or absorbed? Yes, absorbed Yes, released No If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round...
Consider the following equilibrium, for which Delta H < 0 (exothermic reaction): 2 SO_2(g) + O_2(g)...
Consider the following equilibrium, for which Delta H < 0 (exothermic reaction): 2 SO_2(g) + O_2(g) 2 SO_3(g) How will each of the following changes affect an equilibrium mixture of the three gases: (a) Oxygen is added to the system. (b) the reaction mixture is heated. (c) the volume of the reaction vessel is doubled. (d) the total pressure of the system is increased by adding a noble gas. You must explain your reasoning on each case.
What molar ratio Write a balanced chemical equation which corresponds to the following equilibrium constant question...
What molar ratio
Write a balanced chemical equation which corresponds to the following equilibrium constant question K = [NO^-_2] [H_3O^+]/[HNO_2] HNO_2(aq) + H_2O(l) NO^-_2(aq) + H_3O^+(aq) NO^-_2(aq) + H_3O^+(aq) HNO_2(aq) + H_2O(l) NO^-_2 (aq) + H_3O^+(aq) HNO_2(aq) + H_2O(l) NO^-_2 (aq) + H_3O^+(aq) HNO_2(aq) H^+(aq) + OH^-(aq) H_2O(l) HNO_2(aq) NO^-_2 (aq) + H_3O^+(aq) For the equilibrium PCl_5(g) PCl_3(g) + Cl_2(g), K_c = 4.0 at 228 degrees C. If pure PCl_5 is placed in a 1,00-L container and allowed to come...
What is oxidized and what is reduced in the following reaction? Find the mass at AICI_3...
What is oxidized and what is reduced in the following reaction? Find the mass at AICI_3 that is produced when 25.0 grams react with HCl according to the following equation. AL_2o_3 + 6HCL rightarrow 2AlCl_3 + 3H_2)O 32.6 g 159g 72.9g 16.3g 65.4g Any reaction that absorb 150 kcal of energy can be classified as activated reduction oxidation endothermic exothermic How many grams of glucose are needed to prepare 400.mL of a 2.0%(m/v) glucose solution? 8.0g 0.0050g 2.0g 800 g...
Help would be greatly appreciated Consider the following reaction: S(s, rhombic) + O_2 (g) rightarrow SO_2(g)...
Help would be greatly appreciated
Consider the following reaction: S(s, rhombic) + O_2 (g) rightarrow SO_2(g) Use standard heats of formation from Gum Dahl 'Chemical Principles' 7th ed. Appendix Four pp. A19 - A22 How much heat is evolved when 2.886 times 10^2 g of S(s, rhombic) is burned in excess oxygen. Answer to 4 sig figs. How much heat is evolved when 3.000 times 10^2 g of SO_2(g) is produced from the combustion of S(s, rhombic). Answer to 4...
For the reaction N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g) Delta G degree = -23.6 kJ...
For the reaction N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g) Delta G degree = -23.6 kJ and Delta S degree = -198.7 J/K at 345 K and 1 atm. This reaction is (reactant, product) favored under standard conditions at 345 K. The standard enthalpy change for the reaction of 2.30 moles of N_2(g) at this temperature would be kJ. For the reaction 2 H_2O_2(l) rightarrow 2 H_2O(l) + O_2(g) Delta G degree = -236.9 kJ and Delta H degree =...
For the following equilibrium: N_2(g) + H_2(g) rightarrow NH_3(g) delta H= -386 kJ/mole Predict the direction the equilibrium will shift if: N_2 is added? H_2 is removed? NH_3 is added? NH_3 is removed? the volume of the container is decreased? the pressure is increased by adding Argon gas? the reaction is cooled? equal number of moles of H_2 and NH_3 are added? a catalyst is added The equilibrium constant for the following reaction is 5.0 at 400 degree C. CO_(g)...
Balance the following gas-phase reaction and write its reaction quotient, Q_c: SO_3(g) SO_2(g) + O_2(g). Include the physical states of all reactants and products in your balanced equation.
Consider the following reaction: Ca(s) + 2 H_2O(l) rightarrow Ca(OH)_2(s) + H_2(g) Calculate the heat of reaction based on the following information: 2H_2(g) + O_2(g) rightarrow 2 H_2O(l) DeltaH = -572 kJ/mol CaO(s) + H_2O(l) rightarrow Ca(OH)_2(s) DeltaH = -64 kJ/mol CaCO_3(s) rightarrow CaO(s) + CO_2(g) DeltaH = +178.1 kJ/mol 2 Ca (s) + O_2(g) rightarrow 2 CaO(s) DeltaH = -1270 kJ/mol 13. Acetylene is used in blow torches, and bums according to the following equation: 2 C_2H_2(g) + 5...
Which of the following molecules or ions is NOT polar? PCl_3 I_3^- H_2O N_2O SO_2 An iron ore, magnetite, contains only iron and oxygen. In refining 100.0g of the ore, 72.35 g of iron are obtained. What is the empirical formula of the ore? Fe_2O_3 Fe_2O_4 FeO_2 FeO Fe_2O_5 Fe_2O_2(s) and powdered aluminum can react with great output of heat to form molten iron and Al_2O_3 when this reaction equation is balanced, what are the stoichiometric coeeficients in the following...
A chemist measures the energy change Delta H during the following reaction: 2H_2I(l) rightarrow 2H_2(g) + O_2(g) Delta H = 572. kJ Use the information to answer the following questions. This reaction is ... exothermic endothermic Suppose 94.8 g of H_2O react. Will any heat be released or absorbed? Yes, absorbed Yes, released No If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed. Round...
Consider the following equilibrium, for which Delta H < 0 (exothermic reaction): 2 SO_2(g) + O_2(g) 2 SO_3(g) How will each of the following changes affect an equilibrium mixture of the three gases: (a) Oxygen is added to the system. (b) the reaction mixture is heated. (c) the volume of the reaction vessel is doubled. (d) the total pressure of the system is increased by adding a noble gas. You must explain your reasoning on each case.
What molar ratio
Write a balanced chemical equation which corresponds to the following equilibrium constant question K = [NO^-_2] [H_3O^+]/[HNO_2] HNO_2(aq) + H_2O(l) NO^-_2(aq) + H_3O^+(aq) NO^-_2(aq) + H_3O^+(aq) HNO_2(aq) + H_2O(l) NO^-_2 (aq) + H_3O^+(aq) HNO_2(aq) + H_2O(l) NO^-_2 (aq) + H_3O^+(aq) HNO_2(aq) H^+(aq) + OH^-(aq) H_2O(l) HNO_2(aq) NO^-_2 (aq) + H_3O^+(aq) For the equilibrium PCl_5(g) PCl_3(g) + Cl_2(g), K_c = 4.0 at 228 degrees C. If pure PCl_5 is placed in a 1,00-L container and allowed to come...
What is oxidized and what is reduced in the following reaction? Find the mass at AICI_3 that is produced when 25.0 grams react with HCl according to the following equation. AL_2o_3 + 6HCL rightarrow 2AlCl_3 + 3H_2)O 32.6 g 159g 72.9g 16.3g 65.4g Any reaction that absorb 150 kcal of energy can be classified as activated reduction oxidation endothermic exothermic How many grams of glucose are needed to prepare 400.mL of a 2.0%(m/v) glucose solution? 8.0g 0.0050g 2.0g 800 g...
Help would be greatly appreciated
Consider the following reaction: S(s, rhombic) + O_2 (g) rightarrow SO_2(g) Use standard heats of formation from Gum Dahl 'Chemical Principles' 7th ed. Appendix Four pp. A19 - A22 How much heat is evolved when 2.886 times 10^2 g of S(s, rhombic) is burned in excess oxygen. Answer to 4 sig figs. How much heat is evolved when 3.000 times 10^2 g of SO_2(g) is produced from the combustion of S(s, rhombic). Answer to 4...
For the reaction N_2(g) + 3 H_2(g) rightarrow 2 NH_3(g) Delta G degree = -23.6 kJ and Delta S degree = -198.7 J/K at 345 K and 1 atm. This reaction is (reactant, product) favored under standard conditions at 345 K. The standard enthalpy change for the reaction of 2.30 moles of N_2(g) at this temperature would be kJ. For the reaction 2 H_2O_2(l) rightarrow 2 H_2O(l) + O_2(g) Delta G degree = -236.9 kJ and Delta H degree =...
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