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7 Written Questions

6 Multiple Choice Questions

  1. Elven 1.1
  2. 0.821 M HF and 0.909 M NaF
  3. 3.57 cat. blue grape
  4. RbOH, HBr
  5. 7.00
  6. hydrazoic acid

6 True/False Questions

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

          

  2. 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.0.0856

          

  3. In which one of the following solution is silver chloride the most soluble?RbOH, HBr

          

  4. What is the pH of a buffer solution that is 0.255 M in hypochlorous acid (HClO) and 0.3333 M in sodium hypochlorite? The Ka of hypochlorous acid is 3.8 x 10^-8.7.54 (blue dog)

          

  5. Of the following solutions which has the greatest buffering capacity?0.0176 M NH3

          

  6. How many milliliters of 0.0850 M NaOH are required to titrate 25.0 mL of 0.0720 M HBr to the equivalence point?KNO3

          

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