1. Consider the following reaction:            2CH3OH(g) --> 2CH4(g)+ O2(g)    ΔH= 252.8 kj  (a) Determine if the reaction is exothermic or endothermic; (b) calculate the amount of heat transferred when 24.0 g of CH3OH(g) is decomposed by this reaction of constant pressure; (c) For a given sample of CH3OH, the enthalpy of change during the reaction is 82.1kJ. How many grams of methane gas are produced?

Q: For the chemical reaction Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol. What is the enthalpy for…

A: The change in enthalpy of a reaction is used to determine the endothermic reaction or exothermic…

Q: ΔH = +572 kJ for the decomposition of water by the reaction 2 H2O() → 2 H2(g) + O2(g). How many…

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Q: What was the initial temperature (in oC) of a 38.13 g sample of aluminum (specific heat = 0.900 J/(g…

A: Given :-  Mass of substance = 38.13 g  Specific heat = 0.900 J/g.K  Heat  = -1.077 kJ  Final…

Q: what is the standard enthalpy of reaction?   CO(g)+H2O(g)⟶CO2(g)+H2(g)

A: The standard free energy of formation can be defined as the change in energy which occurs when a…

Q: Given the following equation and the molar enthalpy of combustion of methane gas:  CH4((g)  +…

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Q: How much heat (in kJ) is absorbed in the process of making 0.877 mol of CF, from the following…

A: The given chemical reaction is as follows,C(s)+2F2(g)→CF4(g)       ∆H° =141.3 kJmolnumber of moles…

Q: The standard enthalpy change for the following reaction is -340 kJ at 298 K. AH° -340 kJ 4 Cu(s) +…

A: We know that for a reaction Enthalpy change for a reaction depends on the stoichiometry of a…

Q: Formation of carbon dioxide gas from (graphite) and oxygen, yields 393. 5 kJ of heat.

A: To find: The equation for the formation of carbon dioxide gas from  (graphite) and oxygen yields…

Q: The flame in a torch used to cut metal is produced by burning acetylene (C2H2) in pure oxygen.…

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Q: Calculate the standard enthalpy change for the following reaction at 25 °C.…

A: If the reaction between the species acid and base than the salt and water will be generated.

Q: 07. Some instant ice packs contain ammonium chloride (NH,CI), which dissolves to produce two ions in…

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Q: How many kilojoules of heat will be released when exactly 1 mole of iron, Fe, is burned to form…

A: The reaction for standard enthalpy of formation of Fe2O3 is depicted by equation.

Q: Given the reaction: 4 Fe(s) +302(g) → 2 Fe,03(s) A H= -1652 kJ, what is the enthalpy change when…

A: Given reaction is  4 Fe(s) + 3 O2(g) ----> 2 Fe2O3(s) ; ∆H = -1652 kJ  We need to find the…

Q: For a given sample of CH3OH, the enthalpy change during the reaction is 82.5 kJ. What mass of meth…

A: Given :- ∆H = 82.5 kJ  To calculate :- mass of CH4 (in g)  Molar mass of CH4 = 16.0 g/mol

Q: The standard molar enthalpy of formation of calcium carbonate (CaCO3) is - 1206.9 kJ/mol. What will…

A: (d) The reaction is as follows:    CaCO3(s) → CaO(s) + CO2(g) The molar mass of CaCO3 = 100.1 g/mol…

Q: What amount of heat must be supplied to 2.0 x 10-2 kg of nitrogen (at room temperature) to raise its…

A: The amount of energy which is transmitted due to the temperature difference between two system is…

Q: What is the change in enthalpy in kilojoules when 3.24 g of CH,OH gas is completely reacted…

A: Given mass of CH3OH = 3.24 g  Molar mass if CH3OH = 32.04 g.mol-

Q: Use the following data to calculate the standard heat (enthalpy) of formation, ΔH°f, of…

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Q: The flame in a torch used to cut metal is produced by burning acetylene (C2H2) in pure oxygen.…

A:

Q: ΔH = +572 kJ for the decomposition of water by the reaction 2 H2O() → 2 H2(g) + O2(g). How many…

A: Number of moles decomposed = Heat given/Molar heat of decomposition Mass = Number of moles x molar…

Q: Determine the total heat absorbed by the reaction, in kJ, if 2.50 g of O2 is required to fully…

A: Heat absorbed by the reaction = 89.4kJ.mol The heat of Formation of SO3(g) = -204.1kJ/mol

Q: The reaction of quicklime, CaO, with water produces slaked lime, Ca(OH)2, which is widely used in…

A: (a) Given reaction is, Based on the above reaction: 1 mole of quicklime (CaO) releases 350 kJ of…

Q: What is the change in enthalpy in kilojoules when 3.24 g of CH,OH ga completely reacted according to…

A: The question is based on the concept of chemical thermodynamics. we have to calculate the enthalpy…

Q: For the chemical reaction Ca (s) + ½ O2 (g) → CaO (s) AH° = -635 kJ/mol. What is the enthalpy (in…

A: Heat of reaction is defined as difference of energy of product  and energy of Reactant. If heat of…

Q: For the chemical reaction Ca (s) + 2 O2 (g) CaO (s) AH° = -635 kJ/mol. What is the enthalpy for the…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: How many kilojoules of heat will be released when exactly 1 mole of molybdenum, Mo, is burned to…

A: We have to determine the amount of heat that will be released when exactly 1 mole of molybdenum, Mo,…

Q: Given the following equation and the molar enthalpy of combustion of methane gas:…

A: ∆H°comb of methane = -802.5 kJ  Means, it is of one mole of methane. One Mole (16.04g) of methane…

Q: Using the standard enthalpies of formation, what is the standard enthalpy of reaction? CO(g) +…

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Q: Calculate the enthalpy of reaction, ΔHrxn, for 2SO2(g) + O2(g) → 2 SO3(g) Given, S(s) + O2(g) →…

A: Given, S(s) + O2(g) → SO2(g) ΔH= −299 kJS(s) +3/2O2(g) → SO3(g) ΔHsol= −395 kJ Calculate the…

Q: For the chemical reaction Ca (s) + ½ O, (g) → CaO (s) AH° = -635 kJ/mol. What is the enthalpy for…

A: The given reaction is, 2CaO(s) ---> 2Ca(s) + O2(g)   The chemical reaction given is,  1) Ca(s) +…

Q: How many kilojoules of heat will be released when exactly 1 mole of manganese, Mn, is burned to form…

A: The chemical reaction for the burning of Manganese can be written as follows: 3Mn + 2O2 →Mn3O4  The…

Q: The flame in a torch used to cut metal is produced by burning acetylene (C2H2) in pure oxygen.…

A: To solve this problem we have to calculate the mass of acetylene needed to cut the piece of steel .…

Q: calculate the heat of the reaction 3 H2(g) + O3(g) 3 H2O(g)

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Q: The standard enthalpy change for the following reaction is -112 kJ at 298 K. 2 Na(s) + H2(g)…

A: The standard enthalpy change for this reaction at 298 K has to be determined

Q: How much will the temperature of a 200g water at 95°C be reduced when a 45 g metal ( cp = 0.24 J/g…

A: The heat absorbed or released is given by : q = m. C. (T final - T initial ) Where  q = heat…

Q: The reaction of quicklime, CaO, with water produces slaked lime, Ca(OH)2, which is widely used in…

A: The difference in the enthalpy in between the reacting species and the products is known as the…

Q: Na(s) + ½ Cl2(g)   ¾®   NaCl(s)                       H°rxn =  –411.12 kJ/mol If 1.00 kg of sodium…

A: According to Hess’s law, the enthalpy change of the reverse reaction has opposite sign to the…

Q: Consider the hypothetical reaction: A + 3B → 2C, which gives ΔH0= 357.2 kJ. Determine the enthalpy…

A: Exothermic reaction releases the energy during occurrence. Here, the enthalpy of the substrates is…

Q: Consider the hypothetical thermochemical equation 3 A + B → 2 C for which ΔH = 63.1 kJ/mol. If the…

A: 3A + B -> 2C

Q: For the chemical reaction Ca (s) + ½ O₂ (g) → CaO (s) ∆H° = -635 kJ/mol. What is the enthalpy for…

A: To calculate enthalpy for reaction:

Q: Determine the total heat absorbed by the reaction, in kJ, if 2.50 g of O, is required to fully…

A:

Q: Calculate ΔΗ°rxn for the combustion of carbon monoxide, producing CO2 in KJ.…

A: The heat of a reaction can be calculated by knowing the standard enthalpies of formation of…

Q: What quantity in moles of H, are required to give off 2301 kJ of heat in the following reaction? N,…

A: We have to calculate the moles of hydrogen gas required.

Q: The reaction N2(g) + 3H2(g) --> 2NH3(g) at 400.0°C has an associated heat of reaction -92.22 kJ/mol.…

A: The given chemical reaction is as follows: N2(g) + 3H2(g) → 2NH3(g)                    ∆Hr=-92.22…

Q: Calculate the standard enthalpy of formation for C3H6O (l) from its combustion using the following…

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Q: 2. The decomposition of ammonia gas into nitrogen gas and hydrogen gas is endothermic:   2 NH3 (g) →…

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Q: Consider the following reaction: 2CH3OH (g) 2CH4 (g) + 02 (g) AH = 252.8 kJ. Atomic weights: C = 12…

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Q: Using the provided table, determine the enthalpy for the reaction 2 K(s) + 2 H,O(1) → 2 KOH (aq)…

A: The chemical reaction is:2 K (s)+ 2H2O (l) → 2KOH (aq)+H2 (g)         ∆HrGiven: ∆Hf° {K (s)} = 0∆Hf°…

Q: What is the change in enthalpy in kilojoules when 3.24 g of CH,OH is completely reacted according to…

A: Conversion factors are the numerical values which are used to convert one physical quantity to…

Q: a reaction causes 20.0 mL of water to decrease temperature by 4.72 oC at constant pressure, what…

A: