Recent questions in Inorganic Chemistry

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Determine the bond order and bond length of the N-O bond in NO<sup>-</sup> ion.

asked 1 day ago in Inorganic Chemistry by VilmaBernier (450 points)

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1 answer 16 views

Determine the bond order and bond length of the nitrogen-oxygen bond in the nitrate ion (NO3-).

asked 1 day ago in Inorganic Chemistry by RonnySanor7 (590 points)

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Determine the boiling point of sodium chloride (NaCl) at an external pressure of 1 atm, given its heat of vaporization is 406.6 kJ/mol and its melting point is 801°C.

asked 1 day ago in Inorganic Chemistry by BernieT33734 (430 points)

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Consider the chemical reaction between sodium hydroxide (NaOH) and hydrochloric acid (HCl) to produce sodium chloride (NaCl) and water (H2O). Write a balanced chemical equation for this reaction and determine the mole ratio of NaOH and HCl required for complete reaction. If we start with 10 grams of NaOH and 20 grams of HCl, determine which is the limiting reagent, the amount of excess reagent left over, and the mass of NaCl and H2O produced.

asked 1 day ago in Inorganic Chemistry by RosalieJeffr (670 points)

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Calculate the standard reaction entropy of the reaction: 2Fe(s) + 3/2O2(g) --> Fe2O3(s) given that the standard enthalpy of the reaction is -824.2 kJ/mol at 298K.

asked 1 day ago in Inorganic Chemistry by Elissa821461 (290 points)

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Calculate the standard entropy change of the following reaction: 2Fe(s) + 3Cl2(g) → 2FeCl3(s) Given that the standard enthalpy change for this reaction is -400 kJ/mol at 298 K and the standard molar entropy of FeCl3(s) is 95 J/mol K.

asked 2 days ago in Inorganic Chemistry by FosterDibell (230 points)

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1 answer 29 views

Calculate the standard entropy change for the reaction: 2H2 (g) + O2 (g) -> 2H2O (g) given the standard enthalpy of formation of H2O (g) is -241.8 kJ/mol at 298 K.

asked 2 days ago in Inorganic Chemistry by MelindaPolen (610 points)

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Calculate the standard entropy change for the reaction: 2SO3(g) + O2(g) → 2SO4(g) Given the following standard entropies of formation: ΔS°f SO3(g) = 256.2 J/K mol ΔS°f O2(g) = 205.0 J/K mol ΔS°f SO4(g) = 296.8 J/K mol

asked 2 days ago in Inorganic Chemistry by AngelinaOrch (490 points)

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1 answer 15 views

Calculate the standard entropy change for the reaction 2H2(g) + O2(g) → 2H2O(g) given the standard entropy values of H2(g) = 130.6 J/mol K, O2(g) = 205.0 J/mol K, and H2O(g) = 188.8 J/mol K. Also, determine whether the reaction is spontaneous or not at 298 K.

asked 2 days ago in Inorganic Chemistry by CareyDullo8 (330 points)

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1 answer 26 views

Calculate the standard enthalpy change of the reaction below at 298K.Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g)Given the following standard enthalpies of formation (ΔHf°):ΔHf°[Fe2O3(s)] = -824.2 kJ/molΔHf°[Fe(s)] = 0 kJ/molΔHf°[CO(g)] = -110.5 kJ/molΔHf°[CO2(g)] = -393.5 kJ/mol. Also, calculate the change in standard entropy of the system (ΔS°) and determine whether the reaction is spontaneous or not.

asked 2 days ago in Inorganic Chemistry by OMDAlyce2017 (490 points)

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Calculate the standard enthalpy change for the reaction A(s) + 2B(g) → 3C(l) + D(g) given the following data:• ΔHf° for A(s) is -100 kJ/mol• ΔHf° for C(l) is -50 kJ/mol• ΔS° for the reaction is 450 J/K•mol• ΔS° for D(g) is 200 J/K•mol

asked 2 days ago in Inorganic Chemistry by ShayPicot468 (530 points)

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1 answer 22 views

Calculate the standard enthalpy change and the standard entropy change for the reaction: 2HCl(g) + Mg(s) → MgCl2(s) + H2(g) Given the following standard enthalpy of formation values: - HCl(g) = -92.31 kJ/mol - MgCl2(s) = -641.8 kJ/mol - H2(g) = 0 kJ/mol - Mg(s) = 0 kJ/mol Also given the following standard molar entropy values:- HCl(g) = 186.9 J/Kmol - MgCl2(s) = 138.53 J/Kmol - H2(g) = 130.7 J/Kmol - Mg(s) = 32.85 J/Kmol

asked 2 days ago in Inorganic Chemistry by GrettaFinney (270 points)

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1 answer 39 views

Calculate the standard enthalpy change and entropy change for the reaction: 2Fe(s) + 3/2O2(g) -> Fe2O3(s) Given the standard enthalpies of formation of Fe(s), O2(g), and Fe2O3(s) are -0.44 kJ/mol, 0 kJ/mol, and -826 kJ/mol, respectively. Also, the standard molar entropy of Fe2O3(s) is 87.4 J/(mol K).

asked 2 days ago in Inorganic Chemistry by JaneBass3447 (570 points)

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1 answer 32 views

Calculate the standard enthalpy change (ΔH°) and standard entropy change (ΔS°) for the decomposition reaction of calcium carbonate (CaCO3) at 298 K:CaCO3(s) → CaO(s) + CO2(g)

asked 2 days ago in Inorganic Chemistry by VernitaHolid (410 points)

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1 answer 41 views

Calculate the standard enthalpy change (∆H°) and standard entropy change (∆S°) for the reaction between solid aluminum and gaseous oxygen to form solid aluminum oxide, given the following balanced chemical equation:4Al(s) + 3O2(g) → 2Al2O3(s) The standard enthalpies of formation of Al(s), O2(g), and Al2O3(s) are -394.4 kJ/mol, 0 kJ/mol, and -1675.7 kJ/mol, respectively. The standard entropy change for the reaction of O2(g) to form Al2O3(s) is -159.6 J/K·mol.

asked 2 days ago in Inorganic Chemistry by AdelaidaH499 (530 points)

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1 answer 35 views

Calculate the standard enthalpy and standard entropy change at 298 K for the following reaction: 2Fe(s) + 3/2O2(g) → Fe2O3(s) Given that the standard enthalpies of formation for Fe(s), O2(g), and Fe2O3(s) are 0 kJ/mol, 0 kJ/mol, and -826 kJ/mol respectively. Also, the standard molar entropy of Fe2O3(s) is 87.4 J/K/mol.

asked 2 days ago in Inorganic Chemistry by EvanMoye5887 (510 points)

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1 answer 36 views

Calculate the standard enthalpy and entropy change for the reaction, given the following information:2 H2(g) + O2(g) → 2 H2O(g)∆H°f [H2O(g)] = -241.8 kJ/mol∆H°f [H2(g)] = 0 kJ/mol∆H°f [O2(g)] = 0 kJ/mol∆S° [H2O(g)] = 188.8 J/Kmol∆S° [H2(g)] = 130.7 J/Kmol∆S° [O2(g)] = 205.2 J/KmolAssuming that all heat capacities are independent of temperature, calculate ∆S°rxn and ∆H°rxn for this reaction.

asked 2 days ago in Inorganic Chemistry by HugoHogg5769 (430 points)

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1 answer 37 views

Calculate the standard enthalpy and entropy change for the reaction that occurs when 1 mole of Fe2O3 is formed from its elements in their standard state, using the following given data:Fe(s) + 1.5 O2(g) → Fe2O3(s) ΔH°f = -824.2 kJ/mol ΔS° = 87.4 J/mol·K

asked 2 days ago in Inorganic Chemistry by MadgeLemberg (310 points)

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1 answer 32 views

Calculate the standard change in entropy for the reaction below using the given standard enthalpy and temperature information: 3Fe(s) + 4H2O(g) → Fe3O4(s) + 4H2(g) ΔH° = -770.2 kJ T = 298 K

asked 2 days ago in Inorganic Chemistry by WarnerThaxto (490 points)

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1 answer 24 views

Calculate the pH of a 0.1 M solution of hydrochloric acid (HCl) assuming complete dissociation of the acid in water, and identify if the solution is acidic, basic or neutral.

asked 2 days ago in Inorganic Chemistry by KeeshaSwaffo (470 points)

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