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Q. The reversible chemical reaction A + B ⇌ C + D has the equilibrium constant: Kc = [C][D]/[A][B] = 5.1 What is the final concentration of D at equilibrium if the initial concentrations are [A] = 1.00 M and [B] = 2.00 M? Express your answer to two significant figures and include the appropriate units.

Solved • Feb 14, 2020

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Q. Consider the reaction, which takes place at a certain elevated temperature CO(g) + NH3(g) ⇌ HCONH2(g), Kc = 0.890 If a reaction vessel initially contains only CO and NH3 at concentrations of 1.00 M and 2.00 M, respectively, what will the concentration of HCONH2 be at equilibrium? Express your answer with the appropriate units.

Solved • Feb 14, 2020

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Q. The reversible chemical reaction A + B ⇌ C + D has the equilibrium constant: Kc = [C][D]/[A][B] = 5.1 Initially, only A and B are present, each at 2.00 M. What is the final concentration of A once equilibrium is reached? Express your answer to two significant figures and include the appropriate units.

Solved • Feb 14, 2020

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Q. Carbonyl fluoride, COF2, is an important intermediate used in the production of fluorine-containing compounds. For instance, it is used to make the refrigerant carbon tetrafluoride, CF4 via the reaction. 2COF2(g) ⇌ CO2(g) + CF4(g), Kc = 7.70 If only COF2 is present initially at a concentration of 2.00 M, what concentration of COF2 remains at equilibrium? Express your answer with the appropriate units.

Solved • Feb 14, 2020

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Q. A mixture initially contains A, B, and C in the following concentrations: [A] = 0.450 M , [B] = 0.650 M , and [C] = 0.600 M . The following reaction occurs and equilibrium is established: A+2B⇌C At equilibrium, [A] = 0.250 M and [C] = 0.800 M . Calculate the value of the equilibrium constant, Kc. Express your answer numerically.

Solved • Feb 14, 2020

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Q. The following reaction was performed in a sealed vessel at 713 °C: H2(g) + I2(g) ⇌ 2HI(g) Initially, only H2 and I2 were present at concentrations of [H2] = 3.55 M and [I2] = 3.00 M. The equilibrium concentration of I2 is 0.0700 M. What is the equilibrium constant, Kc, for the reaction at this temperature? Express your answer numerically.

Solved • Feb 14, 2020

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Q. The equilibrium constant, Kc, for the following reaction is 77.5 at 600 K. CO(g) + Cl2(g) ⇌ COCl4(g) Calculate the equilibrium concentrations of reactant and products when 0.479 moles of CO and 0.479 moles of Cl2 are introduced into a 1.00 L vessel at 600 K.

Solved • Feb 19, 2020