Calculate the change in enthalpy when 2.00 g of Fe at 25°C and 1 atm pressure is oxidized.  (∆H (standard enthalpy of formation) for Fe2O3(s) is –824 kJ/mol.) 2Fe(s) + 3/2O2( g) ---> Fe2O3( s)

Q: Using the provided table, determine the enthalpy (in kJ/mol) for the reaction C(s) + CO₂ (g)→ 2 CO…

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Q: Consider the following reaction: CH, (9) + 20, (9) → CO2(9) + 2H, O(1) AH =-891 kJ a. Calculate the…

A: The balanced reaction taking place is given as,                                           ΔH = -891…

Q: 226 kJ of heat increases the temperature of 47.0 kg of copper by 12.5 ℃, what is the molar heat…

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Q: What would be the final temperature of 231.6mL of NaCI solution upon releasing 24.1kJ of energy to…

A: The heat released/absorbed is calculated by using the formula : q = mCsΔT q = Heat released/absorbed…

Q: Calculate the specific heat capacity of the unknown metal given the mass of the metal is 225g, the…

A: Given for a sample of metal  mass of metal = 225 gm temperature rise ∆T = 13°C energy absorb Q =…

Q: The standard enthalpy change for the following reaction is -3.35×103 kJ at 298 K. 4 Al(s) + 3…

A: We are given the reaction - 4 Al(s) + 3 O2(g)  →   2 Al2O3(s) We proceed as follows,for finding out…

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A: Given, Step 1: CaC2(s)+2H2O(g)→C2H2(g)+Ca(OH)2(s)       ∆H=-414 kJ   Step 2:…

Q: Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions…

A: The balanced reaction taking place is given as, 4 Fe(s) + 3 O2(g) → 2 Fe2O3(s)…

Q: A 5.000 g sample of methanol, CH3OH, was combusted in the presence of excess oxygen in a bomb…

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

Q: 2. The first step in the industrial recovery of zinc from the zinc sulfide ore is roasting, that is,…

A: Balanced chemical reaction is given by:2ZnS(s) + 3O2(g) → 2ZnO(s) + 2SO2(g)        ∆H = –879…

Q: Write the thermochemical equation for the following reactions that occur at constant pressure:  a)…

A: A thermochemical equation is a chemical equation which represents the enthalpy change of the…

Q: Given that at 298.15K the standard enthalpies of formation (AH,) of nitric oxide is 90.25 kJ and…

A: Since you have posted multiple questions. I will answer only first  question as per our guideline.…

Q: The standard enthalpy change for the following reaction is 401 kJ at 298 K. 2 CH3OH(g)2…

A: • Given,         2 CH3OH(g) → 2C(s,graphile) +4H2(g)+O2(g),                              ∆H°=401 KJ…

Q: Deterioration of buildings, bridges, and other structures through the rusting of iron costs millions…

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Q: ₂0 and 0.444 J/g.°C for Fe. eat capacity of the calorimeter = 3/°C

A: The calorimetry rule says, Heat lost by iron = Heat gained by calorimeter + water Heat lost=mc∆T…

Q: Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen…

A: The first chemical equation is, N2g+3H2g→2NH3g       ∆H=-92 kJ......(1) The second chemical equation…

Q: The following thermochemical equation is for the reaction of tetraphosphorus decaoxide(s) with…

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Q: A 5.000 g sample of methanol, CH3OH, was combusted in the presence of excess oxygen in a bomb…

A: Specific heat capacity is the amount of heat that is required to rise a temperature of 1 kg…

Q: The standard enthalpy change for the following reaction is-438 kJ at 298 K. 2 C(s,graphite) + O2(g)…

A: It is given that when 2 moles of solid graphite is reacting with 1 mole of oxygen and 2 moles of…

Q: When 108 g of water at a temperature of 23.1 °C is mixed with 66.1 g of water at an unknown…

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Q: Exactly 46.33 kJ of heat is transferred to a 1.389 kg slab of nickel at a temperature of 12.7°C. (a)…

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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: In the recovery of iron from iron ore, the reduction of the ore is actually accomplished by…

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Q: The standard enthalpy change for the following reaction is -731 kJ at 298 K. 2 N2(g) + 4 H2(g) + 3…

A: Rule : on dividing the reaction with any constant, the value of enthalpy change also gets divided by…

Q: The standard enthalpy change for the following reaction is 925 kJ at 298 K. Mg(OH)2(s) → Mg(s) +…

A: We know that Enthalpy is a state function one that depends on only the Initial state of the system…

Q: The lead-acid storage battery is the oldest rechargeable battery in existence. It was invented in…

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Q: Determine the standard enthalpy of formation for N2O given the following information about the…

A: Hess's lawThe enthalpy change of a reaction is calculated by subtraction of sum of standard enthalpy…

Q: The standard enthalpy change for the following reaction is -467 kJ at 298 K. Na(s) + 1/2 N2(g) + 3/2…

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Q: 8. How much heat, in kilojoules, is needed to produce 1850 grams of ammonia (NH3), according to the…

A: Formula used :- Number of moles(n) = given mass(w)/Molar mass (M)      n= w/M

Q: The highly exothermic thermite reaction, in which aluminum reduces iron(III) oxide to elemental…

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Q: A sample of carbon is burned in a calorimeter. if the calorimeter absorbs 94 J/K during the reaction…

A: Heat absorbed by the calorimeter = + 94 J.K-1 Heat absorbed by universe i.e. heat released by…

Q: Both graphite and diamond burn.C(s, diamond) + O2(g) ⟶ CO2(g)For the conversion of graphite to…

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Q: Using the reactions below, determine the enthalpy of the following reaction 1 g S8(s) + 02(g) →…

A: Enthalpy of a chemical reaction can be calculated from the heat of the given reactions.

Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of…

A: Calcium carbide is widely used in the industrial preparation of acrylic acid.

Q: The standard enthalpy change for the following reaction is -576 kJ at 298 K. 2 Na(s) + I2(s) –→ 2…

A: Given,

Q: Given the thermochemical expression below:   CaO (s)  +  3C (s)  ⟶  CaC2 (s)  +  CO (g)       ΔHo…

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Q: The standard enthalpy change for the following reaction is 657 kJ at 298 K. SiCl4(g) →→→ Si(s) + 2…

A: Given -> SiCl4(g) ------> Si(s) + 2Cl2(g).       ∆H°= 657 KJ  T = 298 K

Q: The standard enthalpy change for the following reaction is -111 kJ at 298 K. C(s,graphite) + 1/2…

A: For the given reaction, the standard enthalpy change at 298 K is -111 kJ. C (s) + 1/2 O2  (g)  →…

Q: C2H4 (g) + 3 02 (g)2 CO2 (g) + 2 H20 (e) Standard enthalpies of formation of CO2 (g) and H20 (e) are…

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Q: Consider the following reaction: CH4 (9) + 20, (9) → CO2 (9) + 2H, O(1) AH=-891 kJ a. Calculate the…

A: CH4(g) + 2O2(g) ....> CO2(g) + 2H2O(l)  dH = -891KJ  Combustion reaction is exothermic , 891KJ of…

Q: Copper has been used for thousands of years, either as a pure metal or in alloys. It is frequently…

A: Given:The balanced chemical equation:CuO(s)+CO(g)---->Cu(s)+CO2​(g)ΔH° f,CuO is = –155 kJ/molT =…

Q: An unknown sample of coal is burned in an apparatus with a calorimeter constant of 0.8 kJ/°C. When a…

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Q: The standard molar enthalpy formation of ammonia, NH3(g) is -45.92 kJ. 1/2 N2(g) + 3/2 H2(g) ==>…

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Q: A 5.000 g sample of methanol, CH3OH, was combusted in the presence of excess oxygen in a bomb…

A:

Q: The standard enthalpy change for the following reaction is -467 kJ at 298 K. Na(s) + 1/2 N2(g) + 3/2…

A: Given,

Q: The standard enthalpy change for the following reaction is -135 kJ at 298 K. 1/2 N2(g) + 1/2 H2(g)…

A: Basic Rule If any number is multiplied in the reaction Then that number is also multiplied in the…

Q: Consider the following reaction:CH4(g) + 2O2(g) -----> CO2(g) +2H2O(l)          ΔH= -891 kJ A.)…

A: a) Since the enthalpy change when 1 mole of CH4 is reacting is = ΔH= -891 kJ Hence enthalpy change…

Q: An unknown sample of coal is burned in an apparatus with a calorimeter constant of 0.75 kJ/°C. When…

A: Given:  Calorimeter constant(C)= 0.75 KJ/°C  Mass of sample(m) = 0.412 gm  Increase in temperature…