A chemist knows that the equilibrium constant is 0.0049 for the following reaction: . CO₂ (g) + H₂ (g) = CO (g) + H₂O(g) The chemist knows that the equilibrium concentration of both CO₂ and H₂ is 0.0046 M. The chemist also knows that the equilibrium concentration of CO and H₂O is the same but is uncertain of the exact value. What is the concentration of CO when the reaction is at equilibrium? 0.00032 M 1.5 M 230 M O 15 M None of the above

A chemist knows that the equilibrium constant is 0.0049 for the following reaction: . CO₂ (g) + H₂ (g) = CO (g) + H₂O(g) The chemist knows that the equilibrium concentration of both CO₂ and H₂ is 0.0046 M. The chemist also knows that the equilibrium concentration of CO and H₂O is the same but is uncertain of the exact value. What is the concentration of CO when the reaction is at equilibrium? 0.00032 M 1.5 M 230 M O 15 M None of the above

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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5. The reaction: 2NO₂(g) + 7H₂(g) = 2NH3(g) + 4H₂O(g) was allowed to reach equilibrium at 455 K. Analysis showed that there was 34.6 g of NO2, 53.2 g of H₂, 52.6 g of NH3 and 87.4 g H₂O present in a 2.65 L vessel once equilibrium was achieved. a. Determine the equilibrium concentration for both reactants. b. Determine the equilibrium concentration for both products. C. Write the Kc expression. d. Solve for the Kc. e. Solve for the Kp at the same temperature.
Consider the following equilibrium: NH3(g) + HCl(g) NH4CI(s) Suppose a vessel containing NH4Cl(s), NH3(g) and HCl(g) is at equilibrium. If the volume of the vessel is instantaneously doubled while keeping the temperature constant, when a new equilibrium is reached, which of the following statements is incorrect? The partial pressures of NH3 and HCI in the vessel remain unchanged. The total pressure is halved. O The value of Kp remains unchanged. O The number of moles of NH4Cl decreases. O The amount of NH3 and HCI doubles.
At a certain temperature, the equilibrium constant K for the following reaction is 1.0: H,(g) + I,(g) = 2 HI(g) Use this information to complete the following table. Suppose a 38. L reaction vessel is filled with 1.0 mol of H, and 1.0 mol of I,. What can you say about the composition of the mixture in the vessel at equilibrium? There will be very little H2 and I. There will be very little HI. Neither of the above is true. What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits. %3D 2 HI(g) H,(0)+I,(9) What is the equilibrium constant for the following reaction? Round your answer to 2 significant digits. K =] 2 H,(0)+21,(0) 4 HI(g) 1. Fynlanation Check
A chemist is studying the following equilibirum, which has the given equilibrium constant at a certain temperature: N,(g) + 2H,0(g) =2 NO(g) + 2H,(g) K, = 1. × 10 10 He fills a reaction vessel at this temperature with 12. atm of nitrogen gas and 7.1 atm of water vapor. Use this data to answer the questions in the table below. Can you predict the equilibrium pressure of H,, using only the tools Oyes available to you within ALEKS? O no If you said yes, then enter the equilibrium pressure of H, at right. atm Round your answer to 1 significant digit.
Assume that the following endothermic chemical reaction is at equilibrium. C(s) + H₂O(g) + H₂(g) + CO(g) Which of the following statements is/are CORRECT? 1. Increasing the concentration of H₂(g) will cause the reaction to proceed in the backward direction, increasing the equilibrium concentration of H₂O(g). 2. Decreasing the temperature will cause the reaction to proceed in the forward direction, increasing the equilibrium concentration of CO(g). 3. Increasing the amount of C(s) will cause the reaction to proceed in the forward direction, increasing the equilibrium concentration of CO(g). All statements are correct. 2 only 3 only 1 only 1 & 2 only
The equilibrium constant, Kc, for the following reaction is 57.6 at 277 K. 2CH₂Cl₂ (g) CH4 (9) + CCl4 (9) When a sufficiently large sample of CH₂Cl₂ (g) is introduced into an evacuated vessel at 277 K, the equilibrium concentration of CC14 (g) is found to be 0.383 M. Calculate the concentration of CH₂Cl₂ in the equilibrium mixture. [CH₂Cl₂] = M
3. Nitrogen gas and oxygen gas can combine to produce nitrogen monoxide. At 1500 K the equilibrium constant, Ke, is 1.0 x 10 . Suppose a sample of air has [N2] = 0.80 M and [O2] = 0.20 M before any reaction occurs. Calculate the equilibrium concentrations of product and reactants at equilibrium at this temperature.
Consider the equilibrium between SbCl5, SbCl3 and Cl₂. SbCl5(g) SbCl3(g) + Cl₂(g) K = 2.46x10-² at 530 K The reaction is allowed to reach equilibrium in a 7.30-L flask. At equilibrium, [SbCl5] = 0.430 M, [SbCl3] = 0.103 M and [Cl₂] = 0.103 M. (a) The equilibrium mixture is transferred to a 14.6-L flask. In which direction will the reaction proceed to reach equilibrium? (b) Calculate the new equilibrium concentrations that result when the equilibrium mixture is transferred to a 14.6-L flask. [SbCl5] = [SbCl3] = [Cl₂] |||| ΣΣΣ
O KINETICS AND EQUILIBRIUM Using the general properties of equilibrium constants At a certain temperature, the equilibrium constant K for the following reaction is 380.: NO,(8) + CO(3) = NO(g) + CO,(3) Use this information to complete the following table. Suppose a 16. L reaction vessel is filled with 1.4 mol of NO, and 1.4 mol of CO. What can you say about the composition of the mixture in the vessel at equilibrium? There will be very little No, and CO. O There will be very little NO and CO,. O Neither of the above is true. What is the equilibrium constant for the following reaction? Be sure your answer has the correct number of significant digits. K = ] NO(9)+CO,(9) NO,(9)+CO(g) What is the equilibrium constant for the following reaction? Be sure your answer has the correct number of significant digits. K = ] %3D 3 NO,(9)+3CO(g) 3 NO(g)+3CO,(9) 1L Explanation Check III
Calculating an equilibrium constant from a partial equilibrium.. Sulfur dioxide and oxygen react to form sulfur trioxide during one of the key steps in sulfuric acid synthesis. An industrial chemist studying this reaction fills a 2.0 L flask with 3.9 atm of sulfur dioxide gas and 0.74 atm of oxygen gas, and when the mixture has come to equilibrium measures the partial pressure of sulfur trioxide gas to be 1.2 atm. Calculate the pressure equilibrium constant for the reaction of sulfur dioxide and oxygen at the final temperature of the mixture. Round your answer to 2 significant digits. K, = [ %3D do x10 Ar Eplanation Check O 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center Accessibility FEB tv 23 30 MacBook Air DII DD F12 F11 F10 F9 80 888 F8 F7 F5 F6 F4 F3 esc F2 F1 $ % @ 8. 3 4 5 6 2 U
For the following reaction, K, = 0.262 at 1000°C: C(s) + 2 H2(g) = CH4(g) At equilibrium, Pa, is 1.22 atm and 1.35 g of carbon is present. What is the equilibrium partial pressure of CH4(g)? 0.390 atm 5.68 atm 0.997 atm 0.320 atm 0.624 atm None of these
Consider the reaction shown below at a certain temperature. 2H2O(g) ⇋ 2H2(g) + O2(g) The equilibrium constant, K, is equal to 8.7 x 103 at a certain temperature. At equilibrium, it is found that [H2] = 1.9 x 10-2 M and [O2] = 8.0 x 10-2 M. What is the concentration of H2O at equilibrium?.