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B. Problem Solving: Show all calculations. Round off your final answers to two decimal places. (5pts.each) 1. Bromine monochloride (BrCl) decomposes to form bromine and chlorine: BrCl(a) Br2(9) Cl2(9) At a certain temperature, the equilibrium constant for the reaction is 11.1. A sample of pure BrCl is placed in a 1.0 L container and allowed to decompose. At equilibrium, the reaction mixture contains 4.0 mol Cl2. What are the equilibrium concentrations of Br2 and BrCl?
2. Iodine molecules react reversibly with iodide ions to produce triiodide ions. Iz(ag) + Hag) 13(aq) If a liter of solution prepared from 1.00x10-3 mol of 12 and 1.00x10-3 mol of the strong Ki contains 6.61x10-4 mol of iodine at eq., what is the eq. constant for the reaction? Establish an ICE chart.
1) Lactic acid, HC3H5O3, is a waste product that accumulates in muscles tissue during exercise, leading to pain and feeling of fatigue. In a 0.100M aqueous solution, lactic acid is 2.7% ionized. Calculate: a) H b) Ka 2) Show by computation which acid is the weakest based on its % ionization. The lesser its % ionization, the weaker will be the acid. a) 0,10M CH3COOH (Ka = 1.8x10-5) b) 0.10M HCOOH (Ka = 1.8x10-4) -
3) Calculate the: a) pH of 0.001M HCI b) pH of 0.001M NaOH 4) 30.0 mL of 0.1M KOH is diluted with water until the final volume is 300 ml Calculate: a) M2 b) POH c) pH of the resulting solution
5) Papaverine hydrochloride (papHCI), which is a salt of a weak base and a strong acid, is a drug used as muscle relaxant. At 25°C, a 0.205M solution of papHCl has a pH value of 3.31. Compute the Ka of papHCI. 6) The pH of human blood is buffered at 7.35 to 7.45. If the [OH-] of the blood sample is 6.3x106, calculate its pH value. Is the patient's Ph within the range? Or is experiencing acidosis or alkalosis condition?