Question

4. A sample of HI is placed in a sealed container and allowed to come to equilibrium. The equilibrium reaction and equilibrium constant are HSO4 (aq) + H20(1) = H,O*(aq) +50:(aq) K.-6.6 x 10-4 A sample mixture was found to have the following equilibrium concentrations: (HSO4] -0.056 M [H30 ) - 0.971 M in the equilibrium mixture? Show the steps in your calculation. What is the molar concentration of SO 5. Would HSO4 a strong or weak acid?(make sure you include answer from 4 as well as the ka value.) The decomposition of sulfur trioxide is an endothermic reaction: 47 kcal/mol +2 SO:19) = 2 SO2(g) + O2(g) What effects will adding or removing heat, reactants, and products have on the equilibrium? Answer the following questions about the preceding equilibrium reaction by drawing an arrow if the equilibrium shifts to the right, and the equilibrium shifts to the left. if SO, is added Oz is added So, is removed Heat is added Student's Name (in ink): C. Instructor's Initials:

Answer 1

The equilibrium reaction is HSO4 (alle) + H2O(l) = H20" (04) + soc call) Here given rusoil 0.056m ? Equilibrium constant k, = [H307) LS04) | TH So, [10) [1507 ) = 0.056 m [136] = 0.971M Ka = 66X164 [80,?] = ? Ka = [Hot] [Sou? [H SOū] [H2O) [S0?). Ka[11501] [140] [H20) = 1 [H₂ot] Ka Choud [Hot] - 6.6x10" x 0.056 0.971 Aften calculation rso?] = 0.388104