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7 Written questions

6 Multiple choice questions

  1. hydrazoic acid
  2. 0.821 M HC2H3O2 and 0.713 M NaC2H3O2
  3. 0.821 M HF and 0.909 M NaF
  4. 7.54 (blue dog)
  5. NaF
  6. RbOH, HBr

6 True/False questions

  1. How many milliliters of 0.0850 M NaOH are required to titrate 25.0 mL of 0.0720 M HBr to the equivalence point?7.00


  2. Determine the Ksp for magnesium hydroxide (Mg(OH)2) where the solubility of Mg(OH)2 is 1.4 x 10^-4 M.1.9 x 10^-4


  3. In which of the following aqueous solutions would you expect AgBr to have the highest solubility?0.0176 M NH3


  4. Calculate the pH of a solution prepared by dissolving 0.750 mol of NH3 and 0.250 mol of NH4Cl in water sufficient to yield 1.00 L of solution. The Kb of ammonia is 1.77 x 10^-5.7.00


  5. What is the molar solubility of magnesium carbonate (MgCO3) in water? The solubility-product constant for MgCO3 is 3.5 x 10^-8 at 25C.1.9 x 10^-4


  6. A 25.0 ml sample of an HCl solution is titrated with a 0.139 M NaOH solution. The equivalence point is reached with 15.4 mL of base. The concentration of HCl is ______________ M.0.0176 M NH3