Graphing Calculator Calculating the Equilibrium Constant,

Chapter , Problem 61

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Graphing Calculator Calculating the Equilibrium Constant, K, for a System The graphing calculator can run a program that calculates K for a system, given the concentrations of the products and the concentrations of the reactants. Given the balanced chemical equation H2(g) + I2(g) 2HI(g) and the equilibrium mixture at 425C, you can calculate the equilibrium constant for the system.Then you can use the program to make calculations. Go to Appendix C. If you are using a TI-83 Plus, you can download the program CONSTANT and data and run the application as directed. If you are using another calculator, your teacher will provide you with keystrokes and data sets to use. After you have graphed the data, answer the questions below. a. What is the equilibrium constant given the following equilibrium concentrations: 0.012840 mol/L of H2, 0.006437 mol/L of I2, and 0.066807 mol/L of HI? b. What is the equilibrium constant given the following equilibrium concentrations: 0.000105 mol/L of H2, 0.000107 mol/L of I2, and 0.000779 mol/L of HI? c. What is the equilibrium constant given the following equilibrium concentrations: 0.000527 mol/L of H2, 0.000496 mol/L of I2, and 0.003757 mol/L of HI?