1. Write the equilibrium constant expression for the following reaction: H3PO4(aq) + 3 H2O(l) ↔ PO4...
1. Write the equilibrium constant expression for the following reaction: H3PO4(aq) + 3 H2O(l) ↔ PO4 3- (aq) + 3 H3O+ (aq)
2. (LeChatlier’s principle) The following reaction has Kc = 4.2 x 102 at 325oC, all gases. PBr3 + Cl2 ↔ PCl3 + Br2 ΔHo = -47 kJ/mol
a. For this reaction at equilibrium, [PBr3] = [Cl2] = 0.0273 M, and [PCl3] = [Br2] = 0.560 M. What do you expect to happen to the equilibrium concentrations of each species (increase, decrease, stay the same) if the temperature of the reaction is raised to 450oC ?
b. the system is at equilibrium, and dichlorine (Cl2) is added to the reaction. What is the effect on the concentrations of PBr3, PCl3, and Br2.
c. what is the effect of adding helium (He) gas to the reaction at equilibrium. What is the effect on the concentrations of PBr3, PCl3, Cl2, and Br2.
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1. Write the equilibrium constant expression for the following
reaction: H3PO4(aq) + 3 H2O(l) ↔ PO4...
9b. The equilibrium constant, Kc, for the following reaction is 83.3 at 500 K. PCl3(g) +...
9b. The equilibrium constant, Kc, for the following reaction is 83.3 at 500 K. PCl3(g) + Cl2(g) PCl5(g) Calculate the equilibrium concentrations of reactant and products when 0.560 moles of PCl3 and 0.560 moles of Cl2 are introduced into a 1.00 L vessel at 500 K. [PCl3] = M [Cl2] = M [PCl5] = M
1) Consider the reaction: ??(?) + ??(?) ↔ ???(?). Suppose a sample of air contains initially...
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The equilibrium constant, Kc, for the following reaction is 55.6 at 698 K: H2(g) + I2(g)...
The equilibrium constant, Kc, for the following reaction is 55.6 at 698 K: H2(g) + I2(g) ---------->2HI(g) 1) Calculate the equilibrium concentrations of reactants and product when 0.309 moles of H2 and 0.309 moles of I2 are introduced into a 1.00 L vessel at 698 K. [H2] = M? [I2] = M? [HI] = M? 2.The equilibrium constant, K, for the following reaction is 1.20×10-2 at 500 K: PCl5(g)------->PCl3(g) + Cl2(g) An equilibrium mixture of the three gases in a...
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1) The equilibrium constant, K, for the following reaction is 1.80×10-2 at 698 K. 2HI(g) H2(g)...
1) The equilibrium constant, K, for the following reaction is 1.80×10-2 at 698 K. 2HI(g) H2(g) + I2(g) An equilibrium mixture of the three gases in a 1.00 L flask at 698 K contains 0.311 M HI, 4.18×10-2 M H2 and 4.18×10-2 M I2. What will be the concentrations of the three gases once equilibrium has been reestablished, if 2.85×10-2 mol of I2(g) is added to the flask? 2) The equilibrium constant, K, for the following reaction is 1.20×10-2 at...
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You are studying the reaction: 2 A(aq) ↔ 3 B(aq) When the reaction reaches equilibrium, you find [A]eq=0.297M and [B]eq=0.617M. What is the value of Kc for this reaction? Report your answer to 2 decimal places. Your Answer:
At 25 C phosphoric acid, H3PO4, has the following equilibrium constants: H30+ (aq) + H2 PO4 (aq) ...
What is the pH of a solution of 0.750 M KH2PO4, potassium
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At 25 C phosphoric acid, H3PO4, has the following equilibrium constants: H30+ (aq) + H2 PO4 (aq) H30+ (aq) + HP042-(aq) Kal 7.5 x 10-3 Ka2=6.2×10-8 Kas4.2 x 10-13 H, PO4 (aq) + H20(1) H,PO4-(aq) + H2O(1) 근 HPO(a)+H2O()HO (a)P (aq) ▼ Part A
At 25 C phosphoric acid, H3PO4, has the following equilibrium constants: H30+ (aq) + H2 PO4 (aq) H30+ (aq) + HP042-(aq)...
Write the equilibrium-constant expression for the reaction A(s)+3B(l)<------->2C(aq)+D(aq) in terms of [A], [B], [C], and [D]...
Write the equilibrium-constant expression for the reaction A(s)+3B(l)<------->2C(aq)+D(aq) in terms of [A], [B], [C], and [D] as needed. Kc=? *Kc, which is sometimes symbolized as Keq, denotes that the equilibrium constant is expressed using molar concentrations. For this question, Kc means the same thing as Keq.
5-3 Write the equilibrium constant expression of this reaction and calculate the concentration of all the...
5-3 Write the equilibrium constant expression of this reaction and calculate the concentration of all the gases at equilibrium for the reaction: CO(g) + H20 (g) = CO2(g) + H2 (g) Given that the initial concentrations of all the gases are 0.05 M and that Kc = 5.1 at 700 K.
You are studying the reaction: A(aq) ↔ 3 B(aq) The value of Kc for this reaction...
You are studying the reaction: A(aq) ↔ 3 B(aq) The value of Kc for this reaction is 0.685. When the reaction reaches equilibrium, you find [A]eq=0.133M. What is [B]eq? Report your answer to 3 decimal places. Your Answer:
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At 25 C phosphoric acid, H3PO4, has the following equilibrium constants: H30+ (aq) + H2 PO4 (aq) H30+ (aq) + HP042-(aq) Kal 7.5 x 10-3 Ka2=6.2×10-8 Kas4.2 x 10-13 H, PO4 (aq) + H20(1) H,PO4-(aq) + H2O(1) 근 HPO(a)+H2O()HO (a)P (aq) ▼ Part A
At 25 C phosphoric acid, H3PO4, has the following equilibrium constants: H30+ (aq) + H2 PO4 (aq) H30+ (aq) + HP042-(aq)...
5-3 Write the equilibrium constant expression of this reaction and calculate the concentration of all the gases at equilibrium for the reaction: CO(g) + H20 (g) = CO2(g) + H2 (g) Given that the initial concentrations of all the gases are 0.05 M and that Kc = 5.1 at 700 K.
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