The enthalpy changes for two reactions are given. Br2 (l) + F2 (g) → 2BrF (g)         ΔH = x kJ Br2 (l) + 3F2 (g) → 2BrF3 (g)      ΔH = y kJ What is the enthalpy change for the following reaction? BrF (g) + F2 (g) → BrF3 (g)

Q: 2. For which of the following is the enthalpy of the reaction the same as the enthalpy of formation?…

A: The standard enthalpy of formation is the reaction enthalpy when the formation of one mole of a…

Q: The specific heat of an unknown metal is calculated to be 3.74 J/g °C. What is the mass of the…

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Q: When 0.728 g of sodium metal is added to an excess of hydrochloric acid, 7570 J of heat are…

A: Given: Amount of heat energy released (Q) = 7570 J Mass of Na = 0.728 g Molar mass of Na = 22.989…

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Q: When 0.395 g of sodium metal is added to an excess of hydrochloric acid, 4110 J of heat are…

A: Given: Weight of sodium metal is 0.395 g Heat produced is 4110 J The given reaction is,…

Q: When 3 moles of C is formed, what is the change in enthalpy? 3A + 6B + 5 kJ → 2C

A: Answer given below

Q: When 0.378 g of sodium metal is added to an excess of hydrochloric acid, 3930 J of heat are…

A: Given-> Weight of Na = 0.378 g Heat produced for 0.378 g = 3930 J  (1 KJ = 1000 J)

Q: 1/2 N₂(g) + 1/2 O₂(g) → NO(g) kJ/mol-rxn Enthalpy change =

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Q: Calculation of Calories per Mass of Food   Quantity Mass of can (g) 12.623 mass of can and water (g)…

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Q: When 0.855 g of sodium metal is added to an excess of hydrochloric acid, 8890 J of heat are…

A: Sodium metal= 0.855gm Energy released = 8890J

Q: Mass of can (g) 12.62 Mass of can and water (g) 102.04 Initial mass of food sample (g) 1.92 Final…

A: Hi, as you have posted a question with multiple subparts and have not mentioned which subpart you…

Q: ne enthalpy o

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Q: Using standard heats of formation, calculate the standard enthalpy change for the following…

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Q: A system releases 75 J of heat. And the same time 19 J of work is done on the system by the…

A: The formula foe finding Internal energy is, ∆U=q+w where ∆U is the change in internal energy, q is…

Q: When 0.615 g of sodium metal is added to an excess of hydrochloric acid, 6390 J of heat are…

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Q: Calculate enthalpy change for a chemical reaction. When NH3(g) reacts with N₂O(g) according to the…

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Q: Determine the enthalpy change for the following reaction when 10.9 g of NH3 is formed. N2 (g) + 3…

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Q: Given the following two reactions and their enthalpy changes,             2 ClO2 (g)   -->   Cl2 (g)…

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Q: N2(g) + 3 H2(g) → 2 NH3(g);  ΔH = −91.8 kJ How much heat is released when 1.521 ✕ 104 grams of…

A: Step 1: Here, for the given process, the heat released in formation of 2 moles of ammonia is given…

Q: calculate the standard enthalpy change for the following reaction.

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Q: Calculate the heat change (q) in J when 8.111 grams of water is cooled from 1.472 ºC to -2.592 ºC.

A: The heat change during a temperature change ca be calculated as follows. q=mc∆Tq=heat…

Q: Given the following two reactions and their enthalpy changes,             2 ClO2 (g)   -->   Cl2…

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Q: (a) Consider the hypothetical element X. XO reacts with hydrogen gas to form XH;OH. Calculate the…

A: Here we have to find out the enthalpy of the reaction of XO with the hydrogen gas to form XH3OH.  XO…

Q: Using the standard enthalpies of formation, what is the standard enthalpy of reaction?…

A: Given reaction:

Q: When 0.661 g of sodium metal is added to an excess of hydrochloric acid, 6870 J of heat are…

A: Note - Since you have asked multiple question, we will solve the first question for you. If youwant…

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

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Q: When 0.215 g of sodium metal is added to an excess of hydrochloric acid, 2230 J of heat are…

A: Enthalpy is a thermodynamic property which is equal to the heat content of the system.

Q: When 0.361 g of sodium metal is added to an excess of hydrochloric acid, 3750 J of heat are…

A: The given reaction is ,                   2 Na  (s)  +  2 HCl (aq) ---->  2 NaCl (aq)   +  H2 (g)…

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Q: 12. The standard enthalpy of formation, ΔHfº, for which of the following is zero? a)  F2(g) c)…

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Q: When 0.670 g of sodium metal is added to an excess of hydrochloric acid, 6970 J of heat are…

A: moles= mass/molar mass 2 Na(s) + 2 HCl(aq)-----> 2 NaCl(aq) + H2(g)                  Or  Na(s) +…

Q: For which one of the following is the enthalpy of the reaction the same as the enthalpy of…

A: Answer:- The enthalpy change during a chemical reaction in which one mole of  product ifs formed…

Q: Octane (112.224 g/mol) undergoes combustion to form carbon dioxide gas and water vapor: 2 C8H18 (l)…

A: Given, Octane (112.224 g/mol) undergoes combustion to form carbon dioxide gas and water vapor: 2…

Q: Under what conditions does the enthalpy change equal the heat of a process

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Q: When 0.726 g of sodium metal is added to an excess of hydrochloric acid, 7550 J of heat are…

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Q: 1. A thermometer placed in a solution undergoing a chemical reaction indicates an increase in…

A: The energy difference of the products and reactants is known as the energy change of a reaction.

Q: Using the standard enthalpies of formation, what is the standard enthalpy of reaction?…

A: Enthalpy change of a reaction is calculated by subtracting the sum of enthalpies of formation of…

Q: True or False If the statement is true, write "true." If it is false, change the underlined word or…

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Q: 10) For which of the following substances is AH°f, the enthalpy of formation, equal to zero? a)…

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

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Q: According to the following reaction, what is the change in enthalpy (kJ) per mole of the reaction?…

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Q: When O.376 g of sodium metal is added to an excess of hydrochloric acid, 3910 J of heat are…

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Q: Which of the following enthalpy changes is also the standard enthalpy of fromation? O42 Mg(s) +…

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Q: When 0.805 g of sodium metal is added to an excess of hydrochloric acid, 8370 J of heat are…

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A: To solve this problem we will use the given thermochemical equation .

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Q: When 0.215 g of sodium metal is added to an excess of hydrochloric acid, 2230 J of heat are…

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Q: the combustion of magnesium metal releases thermal energy and light energy. This combustion reaction…

A: In certain reactions, when the reaction proceeds forward, the reaction expels heat. In the other…