Chemistry and Chemical Reactivity (9th Edition)

Published by Cengage Learning
ISBN 10: 1133949649
ISBN 13: 978-1-13394-964-0

Chapter 15 Principles of Chemical Reactivity: Equilibria - Study Questions - Page 583f: 56


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Work Step by Step

a) Initial concentration: $6.70\ g\div 134.97\ g/mol\div 10.0\ L=0.005\ M$, reacted x $K_c=[SO_2][Cl_2]/[SO_2Cl_2]$ $0.045=x^2/(0.005-x)$ $x=0.00454$ $[SO_2]=[Cl_2]=0.00454\ M, [SO_2Cl_2]=0.00046\ M$ $f_R=0.00454/0.005\times100\%=90.8\%$ b) Initial concentration of Cl2: $0.10\ atm/RT=0.0019\ M$ $K_c=[SO_2][Cl_2]/[SO_2Cl_2]$ $0.045=x(0.0019+x)/(0.005-x)$ $x=0.00439$ $[SO_2]=0.00454\ M, [Cl_2]=0.00627\ M, [SO_2Cl_2]=0.00061\ M$ $f_R=0.00439/0.005\times100\%=87.8\%$ c) As expected, the addition of a product shifts the equilibrium to the formation of reactants, decreasing its conversion.
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