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Equilibrium Expressions

Q. A student ran the following reaction in the laboratory at 641 K: CO(g) + Cl2(g) COCl2(g) When she introduced 7.34×10-2 moles of CO(g) and 9.69×10-2 moles of Cl2(g) into a 1.00 liter container, she found the equilibrium concentration of Cl2(g) to be 5.72×10-2 M. Calculate the equilibrium constant, Kc, she obtained for this reaction.

Solved • Mar 22, 2020

Equilibrium Expressions

Q. A student ran the following reaction in the laboratory at 751 K: N2(g) + 3H2(g) 2NH3(g) When she introduced 3.88×10-2 moles of N2(g) and 6.25×10-2 moles of H2(g) into a 1.00 liter container, she found the equilibrium concentration of NH3(g) to be 8.71×10-4 M. Calculate the equilibrium constant, Kc, she obtained for this reaction.

Solved • Mar 22, 2020

Equilibrium Expressions

Q. A solution of 5.00 mL of 0.00300 M Fe(NO3)3, 4.00 mL of 0.00300 M KSCN, and 3.00 mL of 1.0 M HNO3 is mixed together and allowed to reach equilibrium. The concentration of Fe(SCN)^2+ is found to be 2.72×10^-4 M at equilibrium. Calculate the equilibrium constant for this reaction.

Solved • Mar 22, 2020

Equilibrium Expressions

Q. The compound ammonia, NH3, is weak base when dissolved in water. Write the Kb expression for the weak base equilibrium that occurs in an aqueous solution of ammonia:

Solved • Mar 5, 2020

Equilibrium Expressions

Q. At 218 ∘C, Kc=1.2×10−4 for the equilibrium process: NH4SH(s)⇌NH3(g)+H2S(g).Calculate the equilibrium concentration of NH3 if a sample of solid NH4SH is placed in a closed vessel at 218 ∘C and decomposes until equilibrium is reached.Calculate the equilibrium concentration of H2S if a sample of solid NH4SH is placed in a closed vessel at 218 ∘C and decomposes until equilibrium is reached.

Solved • Mar 8, 2020

Equilibrium Expressions

Q. For 2SO2(g)+O2(g)⇌2SO3(g), Kp=3.0×104 at 700 K. In a 2.00-L vessel the equilibrium mixture contains 1.17 g of SO3 and 0.108 g of O2.How many grams of SO2 are in the vessel?

Solved • Mar 8, 2020

Equilibrium Expressions

Q. Express the equilibrium constant for the following reaction.Pb(NO3)2(aq)+ 2 NaI (aq)⇌PbI2(s)+ 2 NaNO3(aq)

Solved • Mar 3, 2020