Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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- The equilibrium constant, K,, for the following reaction is 2.20x104 at 723K. 2NH3(g) N2(9) + 3H2(g) If an equilibrium mixture of the three gases in a 12.5 L container at 723K contains NH,3 at a pressure of 0.736 atm and N, at a pressure of 1.00 atm, the equilibrium partial pressure of H2 is atm.arrow_forwardConsider the equilibrium system described by the chemical reaction below, which has a value of Kc equal to 1.2 x 104 at a certain temperature. If a solid sample of NH.SH decomposes, what will the equilibrium concentration of NH3 be? NH:SH(s) = NH3(g) + H2S(g) 1 2 3 NEXT > Based on the given values, set up ICE table in order to determine the unknown. NH.SH(s) NH:(g) H2S(g) Initial (M) Change (M) Equilibrium (M) RESET 1.2 x 104 +x +2x -2x 1.2 x 104 + x 1.2 x 104 - x 1.2 x 104 + 2x 1.2 x 104- 2xarrow_forwardDinitrogen tetraoxide is a colorless gas at room temperature. It can dissociate into nitrogen dioxide, which is a reddish brown gas. N2O4(g) 2 NO2(g) Three experiments were run starting with different initial amounts of N2O4(g) ([N2O4]0 in the table). The systems were allowed to reach equilibrium and the concentrations for each gas were measured (in units of moles/Liter).For each of the boxes below, calculate the ratios indicated by the column heading. This will show the mathematical relationship that exists between the concentrations of NO2 and N2O4 at equilibrium.Be sure to round to the correct number of significant figures. Exp [N2O4]0 [NO2] [N2O4] [NO2] / [N2O4] 2 [NO2] / [N2O4] [NO2]2 / [N2O4] 1 3.7 2.92 2.2 2 2.8 2.49 1.6 3 2.6 2.33 1.4 Based on your calculations, indicate whether each statement is True (T) or False (F): 1. Each experiment started with a different initial concentration of N2O4. 2. The…arrow_forward
- Part B pleasearrow_forwardA student artificially pumped 1 mole of each substance seen below in a piston with a moveable lid (this lid can increase or decrease thereby changing the volume and pressure): 2 C3H7OH (g) + 902 (g) 6 CO2 (g) +8 H2O(g) If the student increased the volume of the piston, how will the reaction shift to reach a new equilibrium? No conclusion can be made since more information is needed The reaction will shift to the left The reaction will shift to the right The reaction will not shift because Q = Karrow_forwardConsider the equilibrium system described by the chemical reaction below. At equilibrium, a 3.0 L reaction vessel contained a mixture of 1.37 x 10-2 M HI, 6.47 × 10-3 M H2, and 5.94 × 10-4 M I, at 740 K. What are the values of Kc and Kp for the reaction at this temperature? H2(g) + 12(g) = 2 HI(g) 1 NEXT > Based on the given data, set up the expression for Kc and then evaluate it. Do not combine or simplify terms. K. = 2 RESET [1.37 x 10-2] [6.47 x 10-3] [5.94 × 10-4] [4.57 × 10-3] [2.16 х 10-3] [2.31 x 10-4] 2[1.37 x 10-2] 2[6.47 x 10-3] 2[5.94 x 10-4] [1.37 х 10-7)2 [6.47 x 10-312 [5.94 x 10-4]2 3.56 x 103 2.81 × 10-4 48.8 2.05 x 10-2arrow_forward
- At 900.0 K, the equilibrium constant (Kp) for the following reaction is 0.345. 2SO2 + O2 (g) →2 SO3 (g) At equilibrium, the partial pressure of SO₂ is 33.1 atm and that of O₂ is 15.0 atm. The partial pressure of SO3 is. O 172 O 6.93-10-4 38.0 75.4 O 4.57-10-3 atm.arrow_forwardDinitrogen tetroxide was used as part of the fuel for the lunar lander in the Apollo missions. It establishes the equilibrium below. N2O4 (g) <--> 2 NO2 (g) Kp = 0.133 If an unknown pressure of N2O4 was added to a reaction flask, and 90.0% of the N2O4 still remains once equilibrium has been established, what was the initial pressure that was added to the reaction flask?arrow_forwardGiven: C (s) + H2O(g) -> CO(g) + H2(g) Kp=1.6x10-21 at 298 If at 298 K PCO= 1x10-8 atm PH2= 2x10-4 atm PH2O= 5x10-5 atm and mass of C = 2g Is the mixture of gases at equilibrium ? Show your calculations. If not, which direction will the reaction proceed to reach equilibrium?arrow_forward
- Consider the following equilibrium: CO (g) + Br2 (g) = COBr2 (g) K=12.0 at 85C Initially, the concentration of CO is 0.10M and Br2 is 0.40M. What are all the equilibrium concentrations?arrow_forwardConsider the following reaction where Kc = 55.6 at 698 K.H2(g) + I2(g) 2HI(g)A reaction mixture was found to contain 4.52×10-2 moles of H2(g), 4.50×10-2 moles of I2(g) and 0.298 moles of HI(g), in a 1.00 liter container.Is the reaction at equilibrium?If not, what direction must it run in order to reach equilibrium?The reaction quotient, Qc, equals .The reactionfill in the blank 2A. must run in the forward direction to reach equilibrium.B. must run in the reverse direction to reach equilibrium.C. is at equilibrium. Submit Answerarrow_forward2) At 250°C, the equilibrium constant (Kc) for the reaction given below is 1.80. PCIS(g) PC13(g) + Cl2(g) Some PCI5 is placed in a reaction vessel and the contents maintained at a temperature of 250ºC and allowed to achieve equilibrium. The equilibrium concentration of PCI5 is 0.28 M Calculate the equilibrium concentration of PCI3 and C12arrow_forward
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