Please use the following reactions and ∆H values to calculate the theoretical ∆Hsoln for NaCl.             NaCl(s)  à  Na+(g) + Cl–(g)           ∆H  =  + 787.9 kJ/mol Na+(g)    à  Na+(aq)                       ∆H  =  – 453.0 kJ/mol Cl– (g)   à  Cl– (aq)                        ∆H  =  – 331.0 kJ/mol

Q: Find the heat of reaction and explain what happen to it. Calculate the ∆H of reaction for: C3H8 (g)…

A: Solution - C3H8 (g) + 5O2 (g) →→ 3CO2 (g) + 4H2O (l)      ∆H∘rxn =∑∆H°f,products-∑∆H°f,reactants…

Q: Find the heat of reaction and explain what happen to it. Calculate the ∆H of reaction for: C3H8 (g)…

A: C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2O (l)      ∆Hrxn° = ∑∆H°f,products-∑∆H°f,reactants   ∆Hrxn° = 3 x…

Q: Calculate ∆Gº for the reaction, 2C2H6(g)+5O2(g)→4CO(g)+6H2O(g), given ∆Gºf for C2H6(g)=-32.9 kJ/mol,…

A: 2C2H6(g)  +  5O2(g)  →  4CO(g)  +  6H2O(g) ∆Gºf for C2H6(g)=-32.9 kJ/mol, ∆Gºf for CO(g)=-137.2…

Q: Determine ∆S for the phase change of 1.10 moles of water from solid to liquid at 0°C. (∆H = 6.01…

A: Entropy change of the system can be determined by knowing the values of heat change and the…

Q: determine the enthalpy change for reaction 1. (1)         Mg(s) + 1/2O2(g) → MgO(s)…

A: Hess' law of constant heat summation: The Hess law states that the change of enthalpy in a chemical…

Q: Given :           (1) 2NF3 + 2NO  → N2F4  + 2ONF     ∆H= -82.9 kJ           (2) NO + ½ F2  → ONF…

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Q: use the data below to calculate the temperature at which the dissociation of I2(g) is 50% at 1 atm…

A:

Q: Using the equations N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) ∆H° = -91.8 kJ/mol C(s) + 2 H₂ (g) → CH₄ (g) ∆H° =…

A: Answer:- This question is answered by using the simple concept of Hess Law of constant heat…

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: CH4(g) + 2 Cl2(g) → CH2Cl2(g) + 2 HCl(g) Calculate ∆Hrxn° using the following data: CH3Cl(g) +…

A: Using Hess's law  Enthalpy of reaction is same for a reaction if the reaction is completes in…

Q: Using the equations N₂ (g) + O₂ (g) → 2 NO (g) ∆H° = 180.6 kJ/mol N₂ (g) + 3 H₂ (g) → 2 NH₃ (g) ∆H°…

A:

Q: Determine ∆S for the phase change of 2.42 moles of water from liquid to solid at 0.0 °C. (∆H = -6.01…

A: Given, ∆H = -6.01 kJ/mol T = 0°C = 273+0 K = 273 K Moles = 2.42

Q: Compute for the heat of reaction of the following equation using the information given: CO(g)   +…

A: Heat of reaction (∆H) depends on Stoichiometry of the reaction If a chemical equation is reversed…

Q: Determine ∆S for the phase change of 1.25 moles of naphthalene from solid to liquid at 80.3°C. (∆H =…

A:

Q: determine the enthalpy change for reaction 1. (1)         Mg(s) + 1/2O2(g) → MgO(s)…

A: The reactions given are, (1) Mg(s) + 1/2O2(g) → MgO(s)                                          ∆H1…

Q: Consider the following reaction: 3 H2 (g) + O3 (g) ⟶ 3 H2O (g) Using the following information,…

A: Recall Hess's law as follows Enthalpy change of a reaction is sum of enthalpy changes of each…

Q: A certain hydrocarbon of the molecular formula CxH2x has a standard enthalpy of formation ∆Hf° =…

A: The correct method to calculate the value for x is attached below

Q: Consider the following equation: 2 CH3OH (ℓ) + 3 O2 (g) à  4 H2O (ℓ) + 2 CO2 (g)         ∆H =…

A: The heat of reaction is a thermodynamic unit of measurement. It is the amount of energy either…

Q: Which value corresponds to a larger Keq: ΔGo = −8 kJ/mol or ΔGo = 20kJ/mol?

A: The relation between Keq and ΔGo is shown below.

Q: Hello. I have another question to ask. How can Ithe answer for this:   The sublimation of carbon…

A: 1- First calculate the moles of CO2 :  moles of CO2 = [ Mass / Molar mass ]  moles of CO2 = [ 84.8g…

Q: Calculate ∆H for the reaction 4 NH3 (g) + 5 O2 (g) → 4 NO (g) + 6 H2O (g), from the following data.…

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Q: 4 NH3 (g)   +   5 O2 (g)      4 NO (g)   +   6 H2O (g)                       ∆H  =  -905 J   What…

A: If Equation is multiplied by 3 the Change in energy will also be three times.

Q: Standard molar entropies for CO(g), CO2(g), and O2(g) are 197.9, 214.0, and 205.0 in J/mol K,…

A: Entropy Entropy is the measure of disorder in a reaction. When an amount of energy is added to a…

Q: Determine ∆S for the phase change of 4.65 moles of water from solid to liquid at 0.0 °C. (∆H = 6.01…

A: According to the question, The moles of water is given by = 4.65 molesThe ∆H is given by = 6.01…

Q: For ionization energy, when is it more unfavorable? How does this relate to the ∆H ?

A: Unfavourable ionization energy means greater amount of energy requirements.  This is possible due to…

Q: Given that the ∆H for the following reaction below is -534 kJ, determine the ∆Hfo for N2H4(l)…

A: The balanced chemical reaction is, N2H4l+O2g→2H2Og+N2g......(1) The enthalpy of the above reaction…

Q: Determine ∆S for the phase change of 2.59 moles of water from liquid to solid at 0.0 °C. (∆H = -6.01…

A:

Q: At 600.0 K, ∆Gº=–31.7 kJ/mol for the following decomposition reaction 2NH3(g) → N2(g) + 3H2(g). What…

A: Since form the balanced reaction 2NH3(g) → N2(g) + 3H2(g)  we can say that 2 moles of NH3 is…

Q: Given: 2C(s) + O₂(g) → 2CO(g) ∆H = -218 kJ C(s) + O₂(g) → CO₂(g) ∆H = -393 kJ How much energy is…

A: The given reactions are: 2C(s) + O₂(g) → 2CO(g)           ∆H = -218 kJ  C(s) + O₂(g) → CO₂(g)…