Zoom Add Page Insert Table Chart Name: Text Shape Media Comment 3. (10 points) At 448 °C the equilibrium constant K, for

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Zoom Add Page Insert Table Chart Name Text Shape Media Comment 3 10 Points At 448 C The Equilibrium Constant K For 1 (54.51 KiB) Viewed 24 times

Zoom Add Page Insert Table Chart Name: Text Shape Media Comment 3. (10 points) At 448 °C the equilibrium constant K, for the reaction is 50.5. Predict in which direction the reaction proceeds to reach equilibrium if we start with 0.10M HI, 0.020M H₂, and 0.30M 12. H₂(g) + 1₂(g) 2 HI(g) Collaborate CHM 112 Exam 2 4. (20 points) A 1.00L buffer composed of 0.13 mol HCN and 0.14 mol CN- has a pH=9.39. Determine the pKa of the acid. A. Calculate the pH of this buffer after 0.040 mol of HCI have been added. B. Calculate the pH of this buffer after 0.040 mol of NaOH have been added. 5. (54 points) Calculate the pH at the following points in the titration of 20.00 ml of 0.100 M CH₂COOH with 0.100 M KOH. The Ka of CH₂COOH is 1.8x10-5 a. Before the addition of any KOH b. After the addition of 5.00 ml of 0.100 M KOH C. After the addition of 10.00 ml of 0.100 M KOH d. After the addition of 20.00 ml of 0.100 M KOH e. After the addition of 25.00 ml of 0.100 M KOH f. Sketch the titration curve Format