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Unformatted text preview: 17.41 Since all equilibrium concentrations are given in molarities and the reaction is balanced, construct an equilibrium expression and substitute the equilibrium concentrations to find Kc 17.43 The reaction table requires that the initial [PCl5] be calculated: [PCl5] = 0.15 mol/2.0 L = 0.075 M x = [PCl5] reacting (-x), and the amount of PCl3 and of Cl2 forming (+x). Concentration (M) PCl5(g) ' PCl3(g) + Cl2(g) Initial 0.075 0 0 Change -x +x +x Equilibrium 0.075 - x x x 17.44 The reaction table requires that the initial [H2] and [F2] be calculated: [H2] = 0.10 mol / 0.50 L = 0.20 M; [F2] = 0.050 mol / 0.50 L = 0.10 M x = [H2] reacting Concentration (M) H2(g) + F2(g) ' 2HF(g) Initial 0.20 0.10 0...
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This note was uploaded on 03/14/2012 for the course CHEN 654 taught by Professor Nimos during the Winter '12 term at Beaufort County Community College.
- Winter '12