Calculate the enthalpy for this reaction: 2C(s) + H2(g) ---> C2H2(g) AH° = ??? k.J %3D Given the following thermochemical equations: C2H2(g) + (5/2)02(g) ---> 2CO2(g) + H20(t) AH° = -1,244 kJ C(s) + O2(g) ---> CO2(g) AH° = -338 kJ H2(g) + (1/2)O2(g) ---> H2O(l) AH° = -294 kJ

Q: The heat capacity of silver (Ag, 107.9 g mol-1), is 0.232 Jg K-1. Calculate the energy needed to…

A: Given:-         Heat capacity CP=0.232 J/g‐K                                      q=?        No.…

Q: Using the following reactions: H 2 (g) +  F 2 (g) --> 2 HF (g)             ∆H = –537 kJ x   C (s)…

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Q: Given the thermochemical equations X, + 3 Y, → 2 XY, AH1 = -390 kJ X, +2 Z, → 2 XZ, AH2 = -160 kJ…

A: In-order to find the enthalpy change of the desired reaction, the given reactions has to be written.

Q: Use Hess's law to calculate ΔGorxn using the following information. CO(g) -----> C(s) + 1/2 O2(g)…

A: Please find your solution below : Hess's law of constant heat summation states that heat absorbed or…

Q: heat in cal

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Q: Part of the industrial recovery of elemental zinc from the zinc sulfide ore is by roasting: ZnSja +…

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Q: Using the equations 2 H2 (g) + O2 (g) → 2 H¿0 (I) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH°…

A: If we multiply by any number or divide to the chemical reaction then ∆H will also multiply or divide…

Q: Given the standard enthalpy changes for the following two reactions: (1) 4C(s) + 5H2(g)–C¿H10(g) AH°…

A: Given  4C(s) + 5H2(g)  ------>  C4H10 (g)               ∆H°  = - 125.6 KJ       ( Equation 1 )…

Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A: Here  Molar mass of CO  12.011g/mol + 15.999g/mol = 28.01g/mol  Given mass of CO = 0.59 g  Now…

Q: Given the thermochemical equations X, + 3 Y, – 2XY, AH1 = -390 kJ X, + 2Z, → 2XZ, AH2 = -170 kJ 2Y,…

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

Q: A piece of unknown solid substance weighs 439 g, and requires 8427 J to increase its temperature…

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Q: (1) 4C(s) + 5H2(g)–C„H,,(g) AH° = -125.6 kJ %3D (2) C2H2(g)2C(s) + H,(g) AH° = -226.7 kJ what is the…

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Q: The standard enthalpy change for the following reaction is -104 kJ at 298 K. 3 C(s,graphite) +4…

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Q: 1. When 2.00 grams of solid sodium hydroxide dissolves in 100.0 ml of water in a coffee-cup…

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Q: Given the thermochemical equations X, +3 Y, → 2XY AH = -330 kJ X, +2Z, → 2XZ, AH = -120 kJ 2Y, +Z, →…

A: Given thermochemical reactions are : X2+3Y2→2XY3                               ∆H1=-330 kJ…

Q: Determine the enthalpy change for the reaction using the given AH values, X (s) + 6 H₂O (g) --> XO6…

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Q: Consider the following reaction. C(s, graphite) + 2H;O(1) → CO2(g) + 2H2(g), AHxn = ? Given the…

A: The amount of heat absorbed or evolved in a reaction carried out at constant pressure is known as…

Q: Which of the following (with specific heat capacity provided) would show the smallest temperature…

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Q: Using the equations 2 H, (g) + O, (g)→ 2 H,O (1) AH° = -572 kJ/mol Ca (s) + ½ Ô, (g) → CaO (s) AH° =…

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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: Show the calculation of the heat of reaction (AHrxn) for the reaction: CH4 (g) + 2O₂ (g) → CO₂ (g) +…

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Q: A calorimeter contains 20.0 mL of water at 14.5 ∘C . When 1.20 g of X (a substance with a molar mass…

A: From the given information, we can calculate the mass of water (solvent) and the mass of the…

Q: The standard enthalpy change for the following reaction is 470 kJ at 298 K. 2 CH3CH,OH(g) 4…

A: We have to calculate the enthalpy change for given reaction.

Q: 7.5 g KNO3 dissociated in 49.0 g of water in a coffee cup calorimeter. The thermometer reading…

A: Given: Mass of KNO3 dissolved = 7.5 g. Mass of water = 49.0 g. Initial temperature of water = 20.4…

Q: Given the thermochemical equations X, + 3 Y, → 2XY, ΔΗ = -390 kJ - X, + 2Z, – 2 XZ, AH2 = -120 kJ…

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Q: The standard enthalpy change for the following reaction is-135 kJ at 298 K. C(s,graphite) + 2…

A: Given : standard enthalpy for reaction  C(s) + 2 Cl2 (g) = CCl4 (l) is = - 135 KJ To find : standard…

Q: Calculate the change in enthalpy for the reaction of solid carbon (graphite) converting into solid…

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Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

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Q: Calculate the enthalpy for this reaction 6C(s, gr) + 3H2(g) →CgHg(2) given the following…

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Q: Using the equations 2 H: (g) + O2 (g) → 2 H2O (1) AH° = -572 kJ/mol Ca (s) + ½ O2 (g) → CaO (s) AH°…

A: The first chemical reaction is, 2H2g+O2g→2H2Ol                 ∆H°=-572 kJ/mol......(1) The second…

Q: The standard enthalpy change for the following reaction is 538kJ at 298K: Ni(OH)2 (s) → Ni(s) +…

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

Q: The standard enthalpy of combustion of solid carbon to form carbon dioxide gas is -393.7 kJ per mol…

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Q: Given the thermochemical equations X, +3 Y, – 2XY3 AH1 = -380 kJ X, +2Z, ► 2 XZ, AH2 = -110 kJ 2 Y,…

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Q: Given the thermochemical equations X, + 3 Y, → 2XY, AH1 = -390 kJ %3D X, + 2Z, → 2 XZ, AH2 = -120 kJ…

A: We have to calculate the enthalpy change for given reaction.

Q: Use the data given below to find the enthalpy of reaction for the following reaction: CaCO3(s) →…

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Q: Given the standard enthalpy changes for the following two reactions: (1) Sn(s) + Cl2(g)--SnCl2(s)…

A: Hess's law: The enthalpy change of a reaction is equal to the sum of enthalpy changes in each step.

Q: Calculate the enthalpy for this reaction: 2C(s) + H2(g) ---> C2H2(g) Given the following…

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

Q: Given the thermochemical equations X, +3 Y, - → 2XY; AH1 = -330 kJ X, + 2Z, 2 XZ, AH2 = -190 kJ %3D…

A: Given data is as follows: X2 + 3Y2 → 2XY3            ∆H1=-330 kJ                          ...... (1)…

Q: Use the following information to determine the enthalpy for the reaction shown be CHĄ(g) + H2O(g) →…

A: We have to find enthalpy of reaction.

Q: Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g) →4S(s) + 602(g) AH° = ??? kJ rxn…

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Q: Use Hess's Law to calculate the enthalpy for this reaction: 4SO3(g)→4S(s) + 602(g) AH°rxn = ??? kJ…

A: Given, a) SO2(g) ➝ S(s) + O2(g)   ∆H° = +296.8 kJ b) 2SO2(g) + O2(g) ➝ 2SO3(g)  ∆H° = -197.8 kJ…

Q: Calcium carbonate can be decomposed upon applying heat with the following equation CaCO3(s)  →…

A: Calcium carbonate can be decomposed upon applying heat with the following equation: CaCO3(s)  →…

Q: Given that enthalpy of formation of the several compounds: C(s)+O2(g)→CO2(g);AH=-393.5kJ…

A: Enthalpy is an extensive property will depend on the number of moles of species

Q: The standard enthalpy change for the following reaction is 2.44×103 kJ at 298 K. 2 BaCO3(s)--->2…

A: Given: 2 BaCO3(s) → 2 Ba(s) + 2 C(s, graphite) + 3 O2(g)     ΔH° = 2.44×103kJ  ----eqn(1)

Q: Given the following data: 2NO(g), N2(g) + 2NO(g) + O2 (g) → O2 (g) → 2NO2(g), 2N2O(g) → ΔΗ 180.7 kJ…

A: The answer is given as follows

Q: When 1.00 L of 1.05 M Ba(NO3)2 solution is mixed with 1.00 L of 1.10 M NazSO4 solution at 25.0°C in…

A: Given: Concentration of Ba(NO3)2 = 1.05 M Volume of Ba(NO3)2 solution = 1.00 L Concentration of…

Q: Use Hess's Law to calculate the enthalpy change for the reaction BaCOy(s) BaO(s) + CO2(g) from the…

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Q: The molar heat capacity at constant pressure for CO(g) is 6.97 cal mol-1 K-1. How much heat in cal…

A: Using the heat capacity formula we can find the heat required to raise the temperature of a…

Q: Given the thermochemical equations X, + 3 Y, → 2XY; AH| = -370 kJ X, + 2Z, → 2 XZ, AH2 = -180 kJ 2…

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Q: Her) is a commonly used acid for adding bromine to organic compounds. As bromine makes for an easily…

A: The enthalpies of the reactions are given . We have to calculate enthalpy for the synthesis of HBr…