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What is the effect of changing the concentration of reactants on the equilibrium constant for a chemical reaction and how can it be measured experimentally?

asked Feb 3 in Chemical kinetics by CaraPrerauer (1.6k 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 LukasKlinger (1.9k points)

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Design a chemical reactor for the production of 500 kg/day of ethylene oxide through the oxidation of ethylene with oxygen in the presence of a silver catalyst. The reactor should achieve a conversion of 85% with a selectivity of 95% towards ethylene oxide, while operating at 3 atm and a reactor temperature range of 200-250°C. The feed stream consists of 15% ethylene, 5% oxygen, and the rest is nitrogen. Determine the appropriate reactor type, size, and operating conditions to achieve these specifications.

asked Feb 3 in Chemical engineering by JamisonKwan8 (1.7k points)

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Calculate the standard enthalpy change of the following chemical reaction at 298 K given the following bond energies: 2H2(g) + O2(g) --> 2H2O(l) Bond energies: H-H: 432 kJ/mol O=O: 498 kJ/mol O-H: 464 kJ/mol

asked Feb 3 in Physical Chemistry by TawannaHaine (2.3k points)

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Calculate the pH of a 0.2 M solution of acetic acid (Ka = 1.8 x 10^-5) at 25°C.

asked Feb 3 in Chemical reactions by Lizzie32E683 (1.8k points)

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Calculate the standard enthalpy change of formation for the compound methane (CH4) given the following information:- The standard enthalpy change of formation for carbon dioxide (CO2) is -393.5 kJ/mol.- The standard enthalpy change of formation for water (H2O) is -285.8 kJ/mol.- The enthalpy of combustion for methane is -890.4 kJ/mol.

asked Feb 3 in Chemical thermodynamics by NinaDimattia (1.6k points)

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What is the effect of changing the monomer structure on the properties of the polymer produced in a polymerization reaction? Provide examples of how different monomers can result in polymers with varying physical and chemical properties.

asked Feb 3 in Organic Chemistry by ChadLarocque (2.2k 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 TeshaPennell (1.6k points)

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How does changing the ratio of reactants in a chemical reaction affect the rate of the reaction?

asked Feb 3 in Chemical kinetics by KeithAnthon1 (1.9k points)

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What is the effect of changing the molecular structure of a liquid crystal on its thermal properties, such as melting point and heat capacity, as predicted by Monte Carlo simulations?

asked Feb 3 in Computational Chemistry by RobertoLafla (2.1k points)

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How does changing the concentration of one of the reactants affect the rate and sustainability of the reaction between potassium permanganate and hydrogen peroxide in acidic solution?

asked Feb 3 in Chemical kinetics by IeshaC20996 (1.7k points)

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How does changing the pressure affect the rate of reaction between hydrochloric acid and calcium carbonate?

asked Feb 3 in Chemical kinetics by ElenaBriscoe (2.1k points)

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Consider a weak acid, HA, with a dissociation constant, Ka = 1.8 x 10^-5. What will be the effect on the concentration of [H3O+] and the degree of ionization of the acid if 0.1 moles of HCl is added to 1 liter of a 0.1 M solution of HA?

asked Feb 3 in Chemical equilibrium by RafaelaBabb7 (2.0k points)

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Calculate the reaction quotient (Qc) for the chemical equation:2NO(g) + O2(g) ⇌ 2NO2(g)At a certain reaction conditions, the concentrations of NO, O2, and NO2 are 0.45 M, 0.25 M, and 0.60 M respectively. Determine if the reaction is at equilibrium and, if not, in which direction will it proceed to reach equilibrium.

asked Feb 3 in Chemical thermodynamics by ClairWaite7 (1.8k points)

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Calculate the standard electrode potential for a redox reaction involving the reaction of iron (Fe) with copper (Cu) ions, given the following half-reactions: Fe2+ + 2e- → FeCu2+ + 2e- → Cu (Note: The standard electrode potential values for Cu2+/Cu and Fe2+/Fe half-cells at 25°C are 0.34V and -0.44V, respectively.)

asked Feb 3 in Chemical thermodynamics by CandelariaFe (1.6k 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 ZKLBarbra368 (2.3k points)

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Consider the reaction of hydrogen gas (H2) and iodine gas (I2) to form hydrogen iodide (HI) at a certain temperature. If the initial concentrations of hydrogen and iodine are [H2] = 0.5 M and [I2] = 0.3 M, and the equilibrium concentration of hydrogen iodide is [HI] = 0.1 M, what is the value of the reaction quotient (Qc) for this reaction at this temperature?

asked Feb 3 in Chemical thermodynamics by PDQJenifer7 (2.0k points)

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Calculate the standard enthalpy change for the phase transition reaction, where 1 mole of solid water (ice) is transformed into 1 mole of liquid water at a constant pressure of 1 atm and a temperature of 298 K. Given the specific heat capacity of ice is 2.108 J g^-1 K^-1 and the specific heat capacity of water is 4.184 J g^-1 K^-1. The molar enthalpy of fusion of water is 6.01 kJ/mol.

asked Feb 3 in Chemical thermodynamics by RemonaRainey (1.6k points)

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How does changing the concentration of reactants affect the selectivity of a chemical reaction?

asked Feb 3 in Chemical kinetics by MarcyLowrie (2.3k points)

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Consider the following unbalanced chemical equation: Fe + HCl → FeCl3 + H2 A student needs to balance this chemical equation in order to determine the coefficients of each reactant and product. What are these coefficients, and how did you arrive at them?

asked Feb 3 in Chemical reactions by JadaRivett2 (2.1k points)

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