Microsoft Word - Ch 12 Worksheet 2-3_doc

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PDFMAILER.COM Print and send PDF files as Emails with any application, ad-sponsored and free of charge www.pdfmailer.com Chemistry 12 Unit 2 - Chemical Equilibrium Worksheet 2-3 - Calculations Involving the Equilibrium Constant Page 1 Chemistry 12 Worksheet 2-3 Calculations Involving the Equilibrium Constant K eq ) 1. Given the equilibrium equation below: A 2(g) + B 2(g) 2AB (g) If, at equilibrium , the concentrations are as follows: [A 2 ] = 3.45 M, [B 2 ] = 5.67 M and [AB] = 0.67 M a) Write the expression for the equilibrium constant, K eq b) Find the value of the equilibrium constant, K eq at the temperature that the experiment was done. Answer ____________________ 2. Given the equilibrium equation: X 2(g) + 3Y 2(g) 2XY 3(g) at a temperature of 50 ° C, it is found that when equilibrium is reached that: [X 2 ] = 0.37 M, [Y 2 ] = 0.53 M and [XY 3 ] = 0.090 M a) Write the equilibrium constant expression (K eq ) b) Calculate the value of K eq at 50°C. Answer ___________________

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PDFMAILER.COM Print and send PDF files as Emails with any application, ad-sponsored and free of charge www.pdfmailer.com Chemistry 12 Unit 2 - Chemical Equilibrium Worksheet 2-3 - Calculations Involving the Equilibrium Constant Page 2 3. For the reaction: A 2(g) + B (g) 2C (g) it is found that by adding 1.5 moles of C to a 1.0 L container, an equilibrium is established in which 0.30 moles of B are found. ( Hint: Make a table and use it to answer the questions below. ) a) What is [A] at equilibrium? Answer ____________________ b) What is [B] at equilibrium? Answer ____________________ c) What is [C] at equilibrium? Answer ____________________ d) Write the expression for the equilibrium constant, K eq . e) Calculate the value for the equilibrium constant at the temperature at the experiment was done. Answer ____________________
PDFMAILER.COM Print and send PDF files as Emails with any application, ad-sponsored and free of charge www.pdfmailer.com Chemistry 12 Unit 2 - Chemical Equilibrium Worksheet 2-3 - Calculations Involving the Equilibrium Constant Page 3 4. Considering the following equilibrium: 2AB 3(g) A 2(g) + 3B 2(g) If 0.87 moles of AB 3 are injected into a 5.0 L container at 25°C , at equilibrium the final [A 2 ] is found to be 0.070 M.( Hint: Make a table and use it to answer the questions below. ) a) Calculate the equilibrium concentration of AB 3 . Answer ____________________ b) Calculate the equilibrium [A 2 ]. Answer ____________________ c) Calculate the equilibrium [B 2 ]. Answer ____________________ 5. Consider the reaction: A (g) + B (g) C (g) a) In an equilibrium mixture the following concentrations were found: [A] = 0.45M, [B] = 0.63M and [C] = 0.30M. Calculate the value of the equilibrium constant for this reaction. Answer ____________________

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Microsoft Word - Ch 12 Worksheet 2-3_doc - PDFMAILER.COM...

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