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7 Written questions

6 Multiple choice questions

  1. hydrazoic acid
  2. 1.9 x 10^-4
  3. 9.73
  4. NaF
  5. 0.821 M HC2H3O2 and 0.713 M NaC2H3O2
  6. 0.821 M HF and 0.909 M NaF

6 True/False questions

  1. The Henderson-Hasselbalch equation is __________.pH= pKa + log [base]/[acid]

          

  2. The pH of a solution prepared by mixing 45.0 mL of 0.183 M KOH and 65.0 ml of 0.145 M HCl is _________.7.00

          

  3. Which one of the following pairs cannot be mixed together to form a buffer solution?KOH, HI

          

  4. How many milliliters of 0.0850 M NaOH are required to titrate 25.0 mL of 0.0720 M HBr to the equivalence point?21.2

          

  5. 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 ________.7.00

          

  6. 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