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How does changing the reaction mechanism affect the rate of the chemical reaction and what factors contribute to the changes in the reaction rate?

asked Feb 3 in Chemical kinetics by LonnySheffie (410 points)

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How does changing the pH of a redox reaction involving copper and zinc affect the equilibrium position and which ion, Cu2+ or Zn2+, is favored?

asked Feb 3 in Chemical equilibrium by Brady22X1545 (550 points)

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How does changing the concentration of reactants affect the selectivity of a chemical reaction with multiple possible products?

asked Feb 3 in Chemical kinetics by ArronYkn0937 (430 points)

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Calculate the standard enthalpy change for the phase transition reaction of solid carbon dioxide (dry ice) at -78.5°C to gaseous carbon dioxide at 1 atm and 25°C, given the following information: The standard enthalpy of fusion of solid carbon dioxide is 8.4 kJ/mol and the standard enthalpy of vaporization of gaseous carbon dioxide is 22.1 kJ/mol.

asked Feb 3 in Chemical thermodynamics by HildredCampo (250 points)

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Calculate the pH of a buffer solution made by combining equal volumes of 0.1 M acetic acid and 0.1 M sodium acetate. The dissociation constant of acetic acid is 1.8 × 10^-5.

asked Feb 3 in Chemical reactions by LazaroR32061 (270 points)

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How does changing the reactant stoichiometry affect the reaction rate of a chemical reaction, and what is the quantitative relationship between the two variables?

asked Feb 3 in Chemical kinetics by SethJemison5 (470 points)

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Calculate the standard enthalpy change for the reaction of cobalt(II) chloride hexahydrate with sodium carbonate to form cobalt(II) carbonate and sodium chloride according to the following balanced equation:CoCl2•6H2O + Na2CO3 → CoCO3 + 2 NaCl + 6 H2OGiven:- The enthalpy of hydration of cobalt(II) chloride is -787 kJ/mol.- The enthalpy of formation of sodium chloride is -411 kJ/mol.- The enthalpy of formation of cobalt(II) carbonate is -718 kJ/mol.- The enthalpy of formation of sodium carbonate is -1130 kJ/mol.

asked Feb 3 in Chemical thermodynamics by MarciaKentis (330 points)

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Calculate the standard electrode potential of an electrode that is in contact with a solution containing 0.1 M copper (II) ions and its concentration of Cu2+ ions is in equilibrium with a hydrogen electrode at 1 atm hydrogen pressure and pH = 0.

asked Feb 3 in ElectroChemistry by CarrolTomkin (310 points)

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How does changing the reactant concentrations affect the reaction rate and ultimately the profitability of a chemical reaction?

asked Feb 3 in Chemical kinetics by RWTIona27307 (730 points)

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What is the effect of changing the orientation of reactant molecules on the rate of a chemical reaction?

asked Feb 3 in Chemical kinetics by KristinaCont (190 points)

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What is the effect of changing the concentration of reactants on the rate of reaction and ultimately the profitability of the reaction in the synthesis of aspirin?

asked Feb 3 in Chemical kinetics by InaGreenham0 (450 points)

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Calculate the standard electrode potential for the redox reaction: Fe3+(aq) + e- → Fe2+(aq) given that the standard reduction potential for the Fe3+(aq)/Fe2+(aq) couple is +0.77 V.

asked Feb 3 in Chemical thermodynamics by GertieEchols (290 points)

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Calculate the standard enthalpy change for the dissolution of 5.00 g of solid sodium hydroxide (NaOH) in water, given that the molar enthalpy of dissolution of NaOH is -44.51 kJ/mol. Assume that the specific heat capacity and density of the solution are the same as pure water and that no heat is lost to the surroundings during the dissolution process.

asked Feb 3 in Chemical thermodynamics by TomasKersey7 (530 points)

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What is the effect of changing the ratio of reactants on the rate of a chemical reaction? Specifically, which reactant(s) have the greatest impact on the reaction rate when its ratio is altered, and how does this impact vary based on the overall stoichiometry of the reaction? Provide experimental evidence to support your conclusions.

asked Feb 3 in Chemical kinetics by LaunaMejia9 (290 points)

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How does changing the molecular structure of a substance affect its magnetic properties, and how can this information be used in the design of novel materials with specific magnetic properties?

asked Feb 3 in Quantum Chemistry by Shirleen5101 (210 points)

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How does changing the pH value of the reactant solution affect the rate of photochemical reactions in the presence of a particular photosensitizer?

asked Feb 3 in PhotoChemistry by ClarissaMcAl (670 points)

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How does changing the pH affect the formation of a complex ion with copper (II) ion and ethylenediamine? Provide a detailed explanation and the associated chemical equations.

asked Feb 3 in Chemical equilibrium by Margot259311 (930 points)

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What is the effect of changing the concentration of reactants on the conversion of reactants into products?

asked Feb 3 in Chemical kinetics by EarnestLarue (690 points)

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How does changing the concentration of reactants affect the reaction rate in the chemical reaction between HCl and Na2S2O3?

asked Feb 3 in Chemical kinetics by LesleyStyers (530 points)

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Calculate the standard enthalpy change of the reaction of 2 moles of carbon monoxide and 1 mole of oxygen gas to form 2 moles of carbon dioxide gas, given that the enthalpy change for the decomposition of 2 moles of carbon dioxide to 2 moles of carbon monoxide and 1 mole of oxygen gas is -566 kJ/mol, and the enthalpy change for the combustion of 1 mole of carbon to form carbon dioxide gas is -394 kJ/mol. Use Hess's Law to solve the problem.

asked Feb 3 in Chemical reactions by Maximilian10 (350 points)

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