Recent questions and answers in Chemical equilibrium

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How does a decrease in temperature affect the equilibrium constant (Kc) for the reaction N2(g) + 3H2(g) ⇌ 2NH3(g)? Calculate the new equilibrium constant if the initial Kc for this reaction at 400°C is 4.34 x 10^-3 and the temperature decreases to 250°C.

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What is the percentage change in the ionization constant of a weak acid if its temperature is increased from 25°C to 35°C? (Assume that the value of the Van't Hoff factor for the reaction is constant and equal to 1.)

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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Suppose you are given 500 mL of 0.1 M acetic acid and 0.1 M sodium acetate buffer solution. You add 2 mL of 1 M hydrochloric acid to the buffer solution. Calculate the new pH of the solution and explain how the buffer system resists changes in pH.

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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Sure, here's a problem for you:Consider the following reaction: N2 (g) + 3 H2 (g) ⇌ 2 NH3 (g)If the equilibrium concentrations of N2, H2 and NH3 are 0.25 M, 0.75 M and 0.50 M, respectively, calculate the equilibrium constant (Kc) for the reaction.

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What is the equilibrium constant (Kc) for the reaction between potassium permanganate (KMnO4) and sulfur dioxide (SO2) in aqueous solution, given that sulfur dioxide is a weak reducing agent? Calculate the value of Kc at a temperature of 298 K.

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What is the equilibrium constant for the reaction N2 (g) + 3H2 (g) ↔ 2NH3 (g) at a temperature of 400°C and a pressure of 10 atm?

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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Using spectroscopic data, calculate the equilibrium constant (K) for the formation of the complex ion Cu(NH3)42+ in a solution containing 0.02 M Cu2+ and 0.5 M NH3 at room temperature.

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What is the equilibrium constant for the formation of a complex ion [Fe(SCN)6]3- when mixing 0.1 M Fe(NO3)3 and 0.1 M KSCN? The absorbance of the [Fe(SCN)6]3- ion at 450 nm is found to be 0.60. Calculate the concentration of [Fe(SCN)6]3-.

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What is the change in equilibrium constant for the formation of a complex ion when the temperature is increased from 25°C to 50°C, given that the enthalpy of reaction is -20 kJ/mol and the entropy change is 80 J/(mol·K)?

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What is the change in pH when a strong acid is added to a buffer solution containing a weak acid and its conjugate base, given the initial concentrations and Ka of the weak acid?

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What will be the effect on the equilibrium position of the redox reaction between Fe2+ and MnO4- if the concentration of Fe2+ is tripled, keeping the concentration of MnO4- constant?

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What will be the effect on the equilibrium position of a redox reaction when the concentration of the reactants is decreased while the concentration of the products remains constant? Provide a step-by-step calculation and explain your answer.

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What will be the effect on the equilibrium position of a redox reaction if the concentration of the reactants is doubled while the concentration of products remains unchanged? Provide a detailed explanation with appropriate calculations.

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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What is the effect of adding a buffer to a solution containing acetic acid and sodium acetate on the equilibrium position of the acid-base reaction between acetic acid and acetate ions? Provide numerical calculations to support your answer.

answered Mar 1 in Chemical equilibrium by TheScientist (138k points)

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How does an increase in pressure affect the equilibrium position and reaction direction of the synthesis of ammonia reaction?

answered Feb 28 in Chemical equilibrium by TheScientist (138k points)

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What is the effect of increasing the concentration of sodium chloride on the solubility of silver chloride? Provide a detailed explanation, including calculations and graphs, to support your answer.

answered Feb 25 in Chemical equilibrium by TheScientist (138k points)

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What is the effect of increasing the concentration of sodium chloride solution on the solubility of silver chloride in water? Provide a detailed explanation using appropriate equations and chemical equilibrium principles.

answered Feb 25 in Chemical equilibrium by TheScientist (138k points)

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What is the impact of increasing the concentration of NaCl on the solubility of AgCl in water? Provide a numerical calculation to support your answer.

answered Feb 25 in Chemical equilibrium by TheScientist (138k points)

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What would be the effect of changing the concentration of NaCl solution on the solubility of AgCl? Provide a detailed explanation using the solubility product constant and Le Chatelier's principle to support your answer.

answered Feb 25 in Chemical equilibrium by TheScientist (138k points)

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What would be the effect on the equilibrium position of the redox reaction between permanganate ion and oxalic acid, if the pH of the reaction mixture is changed from acidic to neutral? Provide a detailed explanation justifying your answer.

answered Feb 24 in Chemical equilibrium by JanellLunsfo (2.0k points)

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