4. At a different temperature, the equilibrium constant for the formation of FeSCN2+ has a value of 525. If the initial concentrations of Fe3+ and SCN were both 0.100 M, what are the equilibrium concentrations of Fe 3+, SCN- and FeSCN2+? Hint: Start by writing the chemical equation for this equilibrium and the equilibrium constant expression and making an ICE table.

4. At a different temperature, the equilibrium constant for the formation of FeSCN2+ has a value of 525. If the initial concentrations of Fe3+ and SCN were both 0.100 M, what are the equilibrium concentrations of Fe 3+, SCN- and FeSCN2+? Hint: Start by writing the chemical equation for this equilibrium and the equilibrium constant expression and making an ICE table.

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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General Chemistry 4th Edition McQuarrie Rock Gallogly University Science Books presented by Macmillan Learning For the chemical equation SO, (g) + NO, (g) = SO,(g) + NO(g) the equilibrium constant at a certain temperature is 2.10. At this temperature, calculate the number of moles of NO, (g) that must be added to 2.64 mol SO, (g) in order to form 1.20 mol SO, (g) at equilibrium. 3 moles of NO,(g): mol 2. Question Source: MRG - General Chemistry | Publish privacy policy | help terms of use contact us about us careers (? ^ N EV prime video W
2. The compound NOCl decomposes to nitric oxide and chlorine according to the following equation: 2 NOCl (g) → 2 NO (g) + Cl2 (g) Suppose that 0.810 mol NOCl is placed in a 4.00-L flask at a given temperature. When equilibrium has been established, it is found that the concentration of Cl2 is 0.0105 M. Calculate the equilibrium constant for this reaction.
A chemist is studying the following equilibirum, which has the given equilibrium constant at a certain temperature: 2 NO(g) + Cl₂(g) 2 NOC1 (g) K₂ = 1. x 10 -6 He fills a reaction vessel at this temperature with 13. atm of nitrogen monoxide gas and 17. atm of chlorine gas. Use this data to answer the questions in the table below. Can you predict the equilibrium pressure of NOCI, using only the tools available to you within ALEKS? If you said yes, then enter the equilibrium pressure of NOCI at right. Round your answer to 1 significant digit. O yes O no atm 0 X S BEEN 000 Ar
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.
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A student adds 0.600 mol of methane gas, CH4(g) into a 2.00 L container and the methane forms ethyne, C2H2(g) and hydrogen gas, H2(g). At equilibrium, the container was found to contain 0.045 mol/L C2H2.a) Calculate the initial concentration of CH4. Then complete an ICE Table to organize the initial, change and equilibrium concentrations for this equilibrium system. Show any calculations needed. 2CH4(g) ⇄ C2H2(g) + 3H2(g)b) Calculate the equilibrium constant, Keq, for this equilibrium. Show all work.c) What is the equilibrium concentration of H2(g) ?
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Consider the reaction A + B C+D, which has an equilibrium constant, K, equal to 3.4 x 102. If one begins a reaction by placing 0.600 moles of A in a 1.0 L container as well as 0.150 moles of 1. B, what will be the equilibrium concentrations of A, B, C, and D? Write your answers in the spaces provided below. a. [А] b. [B]= [C]= С. d. [D]= Once the reaction in problem 1 reaches equilibrium, some additional B is injected into the flask 2. from an outside source. LeChatelier's principle says the reaction will (circle one): be unchanged shift to the right shift to the left Pyridine is a weak base with a Kb 1.7 x 109. If 0.300 moles of pyridine is added to 1.00 L of 3. water, what will be the equilibrium concentrations of the species below: a. [Pyridine] = b. [Pyridine-H] (the pyridinium ion) [ОН-] 3 С. What is the pH of the solution in problem 4 (above)? .
Consider the equilibrium system described by the chemical reaction below. Determine the concentration of O, at equilibrium by writing the equilibrium constant expression and solving it. Complete Parts 1-2 before submitting your answer. = 2 H₂O(g) 2 H2(g) + O̟₂(g) 1 2 NEXT At this temperature, the Kc = 2.4 × 103 and the equilibrium concentrations of H2O and H2 are 0.11 M and 0.019 M, respectively. If [x] represents the equilibrium concentration of O2, set up the equilibrium expression for Kc to solve for the concentration. Each reaction participant must be represented by one tile. Do not combine terms. Кс = 2' = 2.4 × 103 > RESET [0.11] [0.019] 2[0.11] 2[0.019] [0.11]² [0.019]² [x] [x]² [2x] [2x]²
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