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Determine the standard enthalpy change for the precipitation reaction between aqueous solutions of silver nitrate (AgNO3) and potassium chloride (KCl), given the molar concentrations of AgNO3 and KCl are 0.10 M and 0.20 M, respectively. The balanced chemical equation for the reaction is:AgNO3(aq) + KCl(aq) -> AgCl(s) + KNO3(aq)The enthalpies of formation for AgNO3(aq), KCl(aq), AgCl(s), and KNO3(aq) are -365.6 kJ/mol, -436.0 kJ/mol, -127.0 kJ/mol, and -494.6 kJ/mol, respectively.

asked Feb 4 in Chemical thermodynamics by CorneliusMen (2.2k points)

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Determine the standard enthalpy change for the formation of water (H2O) when hydrogen gas (H2) reacts with oxygen gas (O2) according to the balanced equation:2H2(g) + O2(g) → 2H2O(l)Given that the standard enthalpy change of formation for H2O(l) is -285.8 kJ/mol, calculate the amount of heat absorbed or released when 4.50 moles of H2O(l) is formed under standard conditions.

asked Feb 4 in Chemical thermodynamics by CIGArmando01 (1.8k points)

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Determine the standard enthalpy change for the formation of methane gas (CH4) from its constituent elements (C and H2) given the following standard enthalpy of formation values: ΔHf°(C) = 0 kJ/mol and ΔHf°(H2) = 0 kJ/mol.

asked Feb 4 in Chemical thermodynamics by MargotFalkin (2.1k points)

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Determine the standard enthalpy change for the following reaction: Fe2O3(s) + 3CO(g) → 2Fe(s) + 3CO2(g) Given:ΔHf°[Fe2O3(s)] = -824.2 kJ/mol ΔHf°[CO(g)] = -110.5 kJ/mol ΔHf°[Fe(s)] = 0 kJ/mol ΔHf°[CO2(g)] = -393.5 kJ/mol

asked Feb 4 in Chemical thermodynamics by ClaraCraddoc (1.6k points)

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Determine the standard enthalpy change for the following reaction: 2 Fe (s) + 3/2 O2 (g) → Fe2O3 (s) Given the following data: - ΔHf° of Fe2O3 (s) = -826 kJ/mol - ΔHf° of O2 (g) = 0 kJ/mol - The heat capacity of the calorimeter is 135 J/°C Assume that the reaction takes place at constant pressure and that the heat absorbed by the calorimeter is negligible.

asked Feb 4 in Chemical thermodynamics by EttaKee54894 (2.1k points)

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Determine the standard enthalpy change for the dissolution of 5.00 grams of magnesium chloride in water, given that the molar mass of MgCl2 is 95.21 g/mol and the standard enthalpy change of formation for magnesium chloride is -641.3 kJ/mol.

asked Feb 4 in Chemical thermodynamics by EdithLindt35 (1.6k points)

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Determine the standard electrode potential, given that the standard reduction potential for the half-reaction, Ag+ (aq) + e- → Ag(s) is +0.80 V and the standard oxidation potential for the half-reaction, Fe(s) → Fe2+(aq) + 2e-, is -0.44 V. Using this information, predict whether or not the reaction Ag(s) + Fe2+(aq) → Fe(s) + Ag+(aq) will occur spontaneously under standard conditions.

asked Feb 4 in Chemical thermodynamics by Miguel37A006 (2.3k points)

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1 answer 55 views

Determine the rate law for the reaction of nitrogen dioxide with hydrogen gas, if the reaction rate is directly proportional to the concentration of nitrogen dioxide and the square of the concentration of hydrogen gas. Express the rate law in terms of the rate constant and the concentrations of the reactants.

asked Feb 4 in Chemical kinetics by BeverlyNavar (1.8k points)

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Determine the possible isomers of C3H8O using structural formulas and name the type of isomerism for each.

asked Feb 4 in Chemical bonding by ChristelZ81 (1.7k points)

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1 answer 58 views

Determine the polarity of the H-Cl bond in hydrogen chloride molecule, given the electronegativity values of hydrogen and chlorine to be 2.2 and 3.0, respectively.

asked Feb 4 in Chemical bonding by JedShackell5 (1.8k points)

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1 answer 50 views

Determine the oxidation state of the following elements in the compound potassium permanganate (KMnO4): a) Potassium b) Manganese c) Oxygen

asked Feb 4 in ElectroChemistry by Annett65L392 (2.1k points)

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Determine the oxidation state of the chromium atom in the compound potassium dichromate (K2Cr2O7).

asked Feb 4 in Inorganic Chemistry by AnnettaCampb (1.8k points)

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1 answer 54 views

Determine the oxidation state of the carbon atom in the molecule C2H5OH.

asked Feb 4 in Chemical reactions by KennyWenz603 (1.7k points)

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1 answer 74 views

Determine the oxidation state of sulfur in sodium sulfite (Na2SO3) using the oxidation state rules and justify your answer with proper explanation.

asked Feb 4 in ElectroChemistry by JeroldStonem (1.6k points)

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1 answer 64 views

Determine the oxidation state of sulfur in H2SO4.

asked Feb 4 in Chemical reactions by EddieDurack (2.2k points)

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1 answer 38 views

Determine the oxidation state of each atom in the compound KMnO4.

asked Feb 4 in Chemical reactions by MeredithFeg5 (1.6k points)

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1 answer 44 views

Determine the oxidation state of chlorine in HClO3.

asked Feb 4 in Chemical reactions by FerminClatte (1.8k points)

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1 answer 89 views

Determine the oxidation state of all elements in the following compound: CoCl<sub>2</sub>•6H<sub>2</sub>O.

asked Feb 4 in Inorganic Chemistry by ElkeMary0923 (1.7k points)

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1 answer 54 views

Determine the number of electrons transferred in the following electrochemical reaction: Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s) Show the calculation steps and write the balanced half-reactions with the number of electrons transferred.

asked Feb 4 in ElectroChemistry by BrandieB8434 (2.2k points)

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1 answer 51 views

Determine the molecular geometry of the molecule CH3Cl using the VSEPR theory.

asked Feb 4 in Chemical bonding by SilviaKetcha (1.6k points)

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