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2. When 4.00 mol of A and 4.00 mol of B are placed in a 2. container and allowed to come to equilibrium, the resulting mixture is found to contain 0.80 mol of D. Determine the equilibrium concentrations of all compounds pen the following reaction. 151 Ace + 3BCu De 3. 0.60 mol of Br, and 0.60 mol of Cl, are placed in a 1.00 L. flask and allowed to reach equilibrium. (There is no BrClat first.) After reaching equilibrium, the flask is found to contain 0.28 mol of Brei. What is the value of K for this reaction? (5) 4. Braw + Chw > BICI At 150C, the value of K for the following reaction is 7.2. + Brzec 2 Ire Initially, 0.2 mol of 2), 0.2 mol of Brand 0.1 mol Brw are placed in a 1.0L container at 150C. What is the concentration of iodine at equilibrium? (5) 5. What is the molar solubility, in mol/L, of Calcium Nitrate? The Ke value of Ca(NO) is 7.2 x 109 at 25C. (5) 6. If 0.5 g of HCl is dissolved in 250 mL of water, calculate the pol of the solution. [5] 7. The poison injected by bee stings and red ants is made of formic acid (formic, derived from fourmis). Calculate the value of K, if a formic acid solution of 0.10 M has a pH of 2.38. [5] HCOOH + H2O, HjO' + HCOOH