Consider the reaction CaSO, (s) Ca²+ (aq) + SO² (aq) At 25 °C the equilibrium constant is Ke 2.4 x 10 for this reaction. Y Y If excess CaSO4(s) is mixed with water at 25 °C to produce a saturated solution of CaSO4, what is the equilibrium concentration of Ca²+? Express your answer to two significant figures and include the appropriate units. 4.9x10-3 M Submil ✔ Correct Part B If excess CaSO, (s) is mixed with water at 25 °C to produce a saturated solution of CaSO4. what is the equilibrium concentration of SO² ? Express your answer to two significant figures and include the appropriate units. Value Submit Part C Previous Answers A 6 Submit Value Request Answer If the resulting solution has a volume of 1.9 L, what is the minimum mass of CaSO, (s) needed to achieve equilibrium? Express your answer to two significant figures and include the appropriate units. PA 4 Units d Units ? Request Answer Review | Constants | Periodi

Consider the reaction CaSO, (s) Ca²+ (aq) + SO² (aq) At 25 °C the equilibrium constant is Ke 2.4 x 10 for this reaction. Y Y If excess CaSO4(s) is mixed with water at 25 °C to produce a saturated solution of CaSO4, what is the equilibrium concentration of Ca²+? Express your answer to two significant figures and include the appropriate units. 4.9x10-3 M Submil ✔ Correct Part B If excess CaSO, (s) is mixed with water at 25 °C to produce a saturated solution of CaSO4. what is the equilibrium concentration of SO² ? Express your answer to two significant figures and include the appropriate units. Value Submit Part C Previous Answers A 6 Submit Value Request Answer If the resulting solution has a volume of 1.9 L, what is the minimum mass of CaSO, (s) needed to achieve equilibrium? Express your answer to two significant figures and include the appropriate units. PA 4 Units d Units ? Request Answer Review | Constants | Periodi

Physical Chemistry

2nd Edition

ISBN:9781133958437

Author:Ball, David W. (david Warren), BAER, Tomas

Publisher:Ball, David W. (david Warren), BAER, Tomas

Chapter5: Introduction To Chemical Equilibrium

Section: Chapter Questions

Problem 5.16E: 5.16. In atmospheric chemistry, the following chemical reaction converts , the predominant oxide of...

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At a certain temperature, K=0.29 for the decomposition of two moles of iodine trichloride, ICl3(s), to chlorine and iodine gases. The partial pressure of chlorine gas at equilibrium is three times that of iodine gas. What are the partial pressures of iodine and chlorine at equilibrium?
For the following reactions, predict whether the pressure of the reactants or products increases or remains the same when the volume of the reaction vessel is increased. (a) H2O(l)H2O(g) (b) N2(g)+3H2(g)2NH3(g) (c) C2H4(g)+H2O(g)C2H5OH(g)
For the system SO3(g)SO2(g)+12 O2(g)at 1000 K, K=0.45. Sulfur trioxide, originally at 1.00 atm pressure, partially dissociates to SO2 and O2 at 1000 K. What is its partial pressure at equilibrium?
The reaction, 3 H2(g) + N2(g) (g), has the fol lowing equilibrium constants at the temperatures given: atT=25°C,K= 2.8 X 104 at T = 500°C, A = 2.4 X IO"7 At which temperature are reactants favored? At which temperature are products favored? YVhat can you say about the reaction if the equilibrium constant is 1.2 at 127°C?
Show that the complete chemical equation, the total ionic equation, and the net ionic equation for the reaction represented by the equation KI(aq)+I2(aq)KI3(aq) give the same expression for the reaction quotient. KI3 is composed of the ions K+ and I3-.
. Many sugars undergo a process called mutarotation, in which the sugar molecules interconvert between two isomeric forms, finally reaching an equilibrium between them. This is true for the simple sugar glucose, C6H12O6, which exists in solution in isomeric forms called alpha-glucose and beta-glucose. If a solution of glucose at a certain temperature is analyzed, and it is found that the concentration of alpha-glucose is twice the concentration of beta-glucose, what is the value of K for the inter-conversion reaction?
Mustard gas, used in chemical warfare in World War I, has been found to be an effective agent in the chemotherapy of Hodgkin's disease. It can be produced according to the following reaction: SCl2(g)+2C2H4(g)S(CH2CH2Cl)2(g)An evacuated 5.0-1- flask at 20.0C is filled with 0.258 mol SCl2 and 0.592 mol C2H4. After equilibrium is established, 0.0349 mol mustard gas is present. (a) What is the partial pressure of each gas at equilibrium? (b) What is K at 20.0C?
The following two diagrams represent the composition of an equilibrium mixture for the reaction A2 + B2 2AB at two different temperatures. Based on the diagrams, is the chemical reaction endothermic or exothermic? Explain your answer using Le Chteliers principle. (A atoms are red and B atoms are green in the diagrams.)
Lexan is a plastic used to make compact discs, eyeglass lenses, and bulletproof glass. One of the compounds used to make Lexan is phosgene (COCI2), an extremely poisonous gas. Phosgene decomposes by the reaction COCl2(g)CO(g)+Cl2(g) for which KP = 6.8 109 at 100C. If pure phosgene at an initial pressure of 1.0 atm decomposes, calculate the equilibrium pressures of all species.
Consider the following hypothetical reactions and their equilibrium constants at 75C, 3A(g)3B(g)+2C(g)K1=0.31 3D(g)+2B(g)2C(g)K1=2.8 Find the equilibrium constant at 75C for the following reaction A(g)D(g)+53B(g)
5.16. In atmospheric chemistry, the following chemical reaction converts , the predominant oxide of sulfur that comes from combustion of S-containing materials, to , which can combine with to make sulfuric acid (and thus contribute to acid rain): (a) Write the expression for K for this equilibrium. (b) Calculate the value of for this equilibrium using the values in Appendix 2. (c) Calculate the value of K for this equilibrium. (d) If of and of are enclosed in a system in the presence of some liquid, in which direction would the reaction move?
Consider the equilibrium H2(g)+S(s)H2S(g)When this system is at equilibrium at 25C in a 2.00-L container, 0.120 mol of H2, 0.034 mol of H2S, and 0.4000 mol of S are present. When the temperature is increased to 35C, the partial pressure of H2 increases to 1.56 atm. (a) What is K for the reaction at 25C? (b) What is K for the reaction at 35C?