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7 Written questions

6 Multiple choice questions

  1. 7.54 (blue dog)
  2. 0.821 M HF and 0.909 M NaF
  3. 9.73
  4. 0.0176 M NH3
  5. pH= pKa + log [base]/[acid]
  6. 1.9 x 10^-4

6 True/False questions

  1. Of the following solutions which has the greatest buffering capacity?0.821 M HC2H3O2 and 0.713 M NaC2H3O2

          

  2. The molar solubility of _________ is not affected by the pH of the solution/1.9 x 10^-4

          

  3. The pH of a solution prepared by mixing 50.0 mL of 0.125 M KOH and 50.0 ml of 0.125 M HCl is ________.1.966

          

  4. Which one of the following pairs cannot be mixed together to form a buffer solution?RbOH, HBr

          

  5. Determine the Ksp for magnesium hydroxide (Mg(OH)2) where the solubility of Mg(OH)2 is 1.4 x 10^-4 M.Elven 1.1

          

  6. The addition of hydrofluoric acid and ________ to water produces a buffer solution.NaF