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Q. At 25oC, when 0.650 moles of oxygen and 0.025 moles of N2O were placed in a 1500 ml container the following equilibrium was established: 2 N2O(g) + 3 O2 (g) ó 4NO2 (g) At equilibrium, the NO2 concentration was found to be 0.015M. ​a. What is the concentration of each species at equilibrium? ​b. What is the value of the equilibrium constant for this reaction?

Solved • Mar 20, 2020

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Q. When dissolved in water, fructose, C6H12O6, (fruit sugar) and glucose, C6H12O6 (corn sugar) exist in equilibrium as follows: fructose ⇌ glucose. When 17.25 grams of fructose was dissolved in 450 mL of solution at a temperature of 25°C the equilibrium was established and the equilibrium concentration of fructose was then found to be 0.098 M. (a) Determine the equilibrium constant for the reaction. (b) what percentage of fructose was converted to glucose? (c) How many grams of glucose are present in the soluiton at equilbrium?

Solved • Mar 20, 2020

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Q. Phosphorus pentachloride decomposes at higher temperatures. PCl5(g) ⇄ PCl3(g) + Cl2(g) An equilibrium mixture at some temperature consists of 3.03 g PCl5, 208.23 g/mol 4.86 g PCl3, 137.33 g/mol 3.59 g Cl2, 70.91 g/mol in a 1.00-L flask. If you add 1.31 g of Cl2, how will the equilibrium be affected and what will the concentration of PCl5 be when equilibrium is reestablished? shift left? shift right? no shift will occur? [PCl5] = _____?_____ mol/L

Solved • Mar 17, 2020

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Q. A 12.0 g sample of solid NH4Cl is heated in a 5.00L container to a high temperature. At equilibrium, the pressure of NH3(g) is 1.22 atm. What is the value of Kp for the reaction? NH4Cl(s)<----> NH3(g) +HCl (g)

Solved • Mar 10, 2020

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Q. For the equilibrium Br2(g)+Cl2(g)⇌2BrCl(g) at 400 K, Kc = 7.0.If 0.25 mol of Br2 and 0.55 mol of Cl2 are introduced into a 3.0-L container at 400 K, what will be the equilibrium concentration of Br2?

Solved • Mar 8, 2020

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Q. The equilibrium constant (Kc) for the following reaction is 0.0180 at 698K H2 (g) + I2 (g) ⇌ 2HI (g) Calculate the equilibrium concentrations if 0.275 mols of HI are introduced into a 2.00L container at 698K

Solved • Mar 8, 2020

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Q. In a particular experiment, it was found that when O2(g) and CO(g) were mixed and allowed to react according to the equation 2CO(g) + O2(g) ⇄ 2CO2(g) the O2 concentration had decreased by 0.049 mol L-1 when the reaction reached equilibrium. How had the concentrations of CO and CO2 changed?

Solved • Mar 3, 2020