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78. For the reaction PCI, (8) PCl,(g) + Cl,(g) at 600. K, the equilibrium constant, Kp, is 11.5. Suppose that 2.450 g PCI5 is placed in an evacuated 500.-mL bulb, which is then heated to 600. K. a. What would be the pressure of PCI5 if it did not dissociate? b. What is the partial pressure of PCI5 at equilibrium? c. What is the total pressure in the bulb at equilibrium? d. What is the percent dissociation of PCI5 at equilibrium?

78. For the reaction PCI, (8) PCl,(g) + Cl,(g) at 600. K, the equilibrium constant, Kp, is 11.5. Suppose that 2.450 g PCI5 is placed in an evacuated 500.-mL bulb, which is then heated to 600. K. a. What would be the pressure of PCI5 if it did not dissociate? b. What is the partial pressure of PCI5 at equilibrium? c. What is the total pressure in the bulb at equilibrium? d. What is the percent dissociation of PCI5 at equilibrium?

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Can you help me with number 78. This is not a graded question as it is a practice question . I am 60 years old and helping my son prepare for the AP exam in a few months. We do questions at the back of the textbook by Zumdahl and Zumdahl

77. At a certain temperatune, K 1.l X 10 för Fe (aq) + SCN (ag) FESCN²+(aq) Calculate the concentrations of Fe+, SCN-, and FeSCN2+ at equilibrium if 0.020 mole of Fe(NO,)3 is added to 1.0L of Q.10 M KSCN. (Neglect any volume change.) 78. For the reaction 84. PCI,(g) PCI,(g) + Cl,(g) at 600. K, the equilibrium constant, K, is 11.5. Suppose that 2.450 g PCI5 is placed in an evacuated 500.-mL bulb, which is then heated to 600. K. a. What would be the pressure of PCl if it did not dissociate? b. What is the partial pressure of PCI5 at equilibrium? c. What is the total pressure in the bulb at equilibrium? d. What is the percent dissociation of PCI5 at equilibrium? 79. At 25°C, gaseous SO,Cl2 decomposes to SO2(g) and Cl2(g) to the extent that 12.5% of the original SO2C12 (by moles) has de- composed to reach equilibrium. The total pressure (at equilib- rium) is 0.900 atm. Calculate the value of K, for this system. 80. For the following reaction at a certain temperaturę
Transcribed Image Text:77. At a certain temperatune, K 1.l X 10 för Fe (aq) + SCN (ag) FESCN²+(aq) Calculate the concentrations of Fe+, SCN-, and FeSCN2+ at equilibrium if 0.020 mole of Fe(NO,)3 is added to 1.0L of Q.10 M KSCN. (Neglect any volume change.) 78. For the reaction 84. PCI,(g) PCI,(g) + Cl,(g) at 600. K, the equilibrium constant, K, is 11.5. Suppose that 2.450 g PCI5 is placed in an evacuated 500.-mL bulb, which is then heated to 600. K. a. What would be the pressure of PCl if it did not dissociate? b. What is the partial pressure of PCI5 at equilibrium? c. What is the total pressure in the bulb at equilibrium? d. What is the percent dissociation of PCI5 at equilibrium? 79. At 25°C, gaseous SO,Cl2 decomposes to SO2(g) and Cl2(g) to the extent that 12.5% of the original SO2C12 (by moles) has de- composed to reach equilibrium. The total pressure (at equilib- rium) is 0.900 atm. Calculate the value of K, for this system. 80. For the following reaction at a certain temperaturę
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