Calulate ΔH for the following reaction: 2Mg(s)+O2(g)->2MgO(s) when 4.67g of Mg(s) reacts at constant pressure (ΔHreaction=-1338 kJ).

Q: Calculate the ΔH for the reaction: 4 NH3 (g) + 5 O2 (g) --> 4 NO (g) + 6 H2O (g) from the following…

A: According to Hess's law, the enthalpy change of a reaction is independent of the number of steps…

Q: Consider these reactions: Reaction 1: H2 (g) + Cl2 (g) → 2HC1(g) AH = –184.6 kJ Reaction 2: 20F2(g)…

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Q: Adding 1.56 g of K2SO4 to 6.00 mL of water at 16.2ºC causes the temperature of the solution to drop…

A: Given : Mass of K2SO4 added = 1.56 g Volume of water = 6.00 mL Drop in the temperature of initial…

Q: Given the reactions, X(s)+12O2(g)⟶XO(s) Δ?=−635.1 kJ XCO3(s)⟶XO(s)+CO2(g)…

A: The given problem relates to Hess's law, which states that the amount of heat evolved or absorbed in…

Q: Calculate ΔH(f) for liquid water, knowing that ΔH (f) of H2O (g) is -242 kJ:  H2O(l) -> H2O(g) ΔH…

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Q: Calculate (in kJ/mol) the standard Gibbs free energy change (AG°rxn) for the oxidation of sulfur…

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Q: Calculate (in kJ/mol) the standard Gibbs free energy change (AGºrxn) for the oxidation of sulfur…

A: The given reaction is  2SO2(g) + O2(g) → 2SO3(g)  ∆Hrxn = -198.4 kJ = 198400 J  ∆Srxn = -187.9 J/K…

Q: In winemaking, the sugars in grapes undergo fermentation by yeast to yield CH3CH2OH and CO2. During…

A: To find: (a) Using C6H12O6 for sugar, calculate ΔH°rxn of fermentation and of respiration.(b) Write…

Q: Calculate ΔH° in kilojoules for the following reaction, the preparation of the unstable nitrous…

A: Given :

Q: Given the reactions, X(s)+1/2 O2(g)⟶XO(s)   Δ?=−613.7 kJ XCO3(s)⟶XO(s)+CO2(g) Δ?=+148.1 kJ what is…

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Q: has

A: We wil use Clausius clapreyon Equation

Q: (d) Cl(g) + 2 NO(g) → 2 NOCI(g) (e) SiCl(g) → Si(s) + 2 Cl,(g)

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Q: Given the reactions, X(s) +02(g) XO(s) ΔΗ -670.5 kJ XCO3(s) XO (s)+CO2(g) ΔΗ +395.3 kJ what is AH…

A: Given that,The enthalpy change of the reaction is

Q: When 50.0 mL of 0.987 M H2SO4 is added to 25.0 mL of 2.00 M NaOH at 25.0 °C in a calorimeter, the…

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Q: The standard heat of formation for Ag2CrO4(s) is -712 kJ/mol at 298 K. Write the formation equation…

A: The equation for the heat of formation reaction can be written as, 2Ag++CrO4-2→ Ag2CrO4 ∆H=-712…

Q: 13.4gof NH4Clis dissolved in 150mLof water in a coffee-cup calorimeter, and the temperature of the…

A: moles of NH4Cl = mass / molar mass of NH4Cl                           = 13.4 g / 53.5 g/mol…

Q: Write the balanced overall equation (as shown) for the following process, calculate ΔHoverall, and…

A: The balanced overall equation, ΔHoverall and the number of each equation with letter of the…

Q: .. This question is given in the photo 2..The Haber process is used to produce ammonia for…

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Q: The addition of 121  g potassium fluoride to 591  mL of water (d = 1.00 g/mL) causes the temperature…

A: The mass of solution is calculated as shown,

Q: Hydrogen cyanide is a highly poisonous, volatile liquid. Determine the ΔH for the reaction that…

A: Hess's Law of Constant Heat Summation: If a reaction occurs in multiple stages or steps, the total…

Q: ΔHf information provided to calculate ΔH of the reaction (in kJ) for the following:…

A: Given, Ca(OH)2(s) + 2H3AsO4(aq ---> Ca(H2AsO4)2(aq) + 2H2O(l)   Ca(OH)2(s) = -986.6 kJ/mol…

Q: If 5.60 mol of a substance releases 14.9 KJ when it decomposes, what is the ΔH for the term KJ/mol…

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Q: 18. Use the chemical equations shown below to determine the enthalpy for the reaction: Fe,O«(s) +…

A: To solve this problem we will use the given thermochemical equations .  We have to make a…

Q: (a) Calculate the value of Kc for the reaction: PCl5 (g)                PCl3 (g)   +    Cl2 (g)…

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Q: Calculate ΔH° (in kJ) for the decomposition process/reaction: Co3O4(s)  --> 3Co(s) + 2O2(g) from the…

A: Given intermediate reaction,  Co(s) + ½O2(g)  --> CoO(s)  ------(1)             ΔH° = -237.9 kJ…

Q: Using Le Châtelier's principle, list four ways in which the concentration of hydrazine, N2H4, could…

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Q: When 3.00 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 11.00oC was…

A: The heat of the solution produced when 3.0 g of sodium hydroxide is dissolved in 100 g of water, is…

Q: Use AH° values of the following three reactions: 20F2 (g) → O2 (g) + 2F2 (g) AH° = -49.4 kJ 2CIF (g)…

A: The target equation is:

Q: The standard heat of formation for Ag2CrO4(s) is -712 kJ/mol at 298 K. Write the formation equation…

A: Given, standard heat of formation for Ag2CrO4(s) is -712 kJ/mol. The term "standard heat of…

Q: Calculate the ΔH for the reaction: C2H4 (g) + H2 (g) --> C2H6 (g), from the following data:   C2H4…

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Q: A reaction occurs in the left-to-right direction until it reaches equilibrium. Which of the…

A: We have to find correct statements about a reaction which occurs in the left-right direction until…

Q: When 36.1 g of NH3 (MM = 17.03 g/mol) decompose, 171 kJ of energy is absorbed. Calculate AHXN in kJ…

A: Given reaction: 2 NH3 (g) → N2 (g) + 3 H2 (g) Given, the molar mass of NH3 = 17.03 g/mol It is also…

Q: Consider the equilibrium reaction of CO (g) with H2 (g) to form CH3OH (g). For this reaction, ΔH <…

A: The reaction of CO with H2 forms methanol CH3OH. Write the complete reaction. COg+2H2g→CH3OHg

Q: After determining the ΔH of reactions, explain what does the numerical difference represent, in…

A: Enthalpy change of a reaction, ΔH can be either positive or negative numerically.

Q: Considering the limiting reactant, how much heat is produced at constant pressure if 0.243 g of…

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Q: Calculate the equilibrium constant Kc for a reaction occurring at a temperature of 15 oC, and with…

A: (a) Given: Temperature = 15 C delta G = -45.3 kJ/mol

Q: Use ΔH formation information provided to calculate ΔH of the reaction (in kJ) for the following:…

A: In this question, we have to find out the correct answer of given problem by the help of Enthalpy…

Q: 4 (a) Calculate the value of Kc for the reaction: PCl5 (g)                PCl3 (g)   +    Cl2 (g)…

A: We have find out the answer.

Q: For each reaction equation, calculate the internal energy change, ΔE, of the reaction at 25 ∘C…

A: Enthalpy and energy of the reaction are related as H=E+PV The change in enthalpy can be given as…

Q: Calculate AH for the reaction, C,H,(g) + H,(g) → C,H,(g) Given: (a) 2 C,H,(g) + 5 0,(g) →4 CO,(g) +2…

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Q: If an equation for a reaction is doubled and then reversed, How is the value of ΔH changed?

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Q: Calculate the ΔHo for the reaction, 6NO2(g) + 8NH3(g) → 7N2(g) + 12H2O(l).   N2(g) + 2O2(g) →…

A: Mathematically, if a chemical reaction can be expressed as the sum of two or more chemical…

Q: Calculatre the ΔH of reaction for the following reaction:  Fe3O4 (s)  +  CO (g)  -->  3FeO (s)  +…

A: △H =△HProducts -△HReactants

Q: Balance the following equation and calculate its ΔSo in units of J mol-1 K-1.  Type in your answer…

A:

Q: If for the reaction: 4Fe(s) + 302(g) →→→→2Fe₂O3(s) AHran-1648 kJ/mol rxn, then for the reaction:…

A: The thermochemical equations can be treated as algebraic equation which can be added,  subtracted,…

Q: Determine the ΔH of the following reactions. 1.) CH4 (g) + 2 O2 (g) à CO2 (g) + 2 H2O (l)…

A: Determine the ΔH of the following reactions.

Q: Ozone (O3) in the atmosphere is subject to reaction with nitric oxide (NO) as O3(g)   +  NO(g)   ->…

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Q: Determine the ΔH of the following reactions. 1.) CH4 (g) + 2 O2 (g) à CO2 (g) + 2 H2O (l)…

A: A question based on chemical thermodynamics that is to be accomplished.