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5 Written questions

5 Matching questions

  1. Which of the following could be added to a solution of acetic acid to prepare a buffer?
  2. The solubility of lead (II) chloride (PbCl2) is 1.6 x 10^-2 M. What is the Ksp of PbCl2?
  3. Of the substances below, ________ will decrease the solubility of Pb(OH)2 in a saturated solution.
  4. In which aqueous solution is PbI2 least soluble?
  5. The Kb of ammonia is 1.77 x 10^-5. The pH of a buffer prepared by combining 50.0 mL of 1.00 M ammonia and 50.0 mL of 1.00 M ammonium nitrate is _________________.
  1. a Pb(NO3)2
  2. b 9.25 Igloo.blue egg
  3. c sodium hydroxide
  4. d 1.6 x 10^-5 apple .flower quint
  5. e 0.8 M KI

5 Multiple choice questions

  1. 0.020 M BaCl2
  2. 4.077 dog. O green green
  3. 1.1 x 10^-2 apple. apple toodles
  4. 0.723 O. green blue cat
  5. CsF, HF

5 True/False questions

  1. Calculate the percent ionization of formic acid (HCO2H) in a solution that is 0.219 M in formic acid. The Ka of formic acid is 1.77 x 10^-4.2.84 blue. hat dog

          

  2. In which of the following aqueous solutions would you expect PbCl2 to have the lowest solubility?.020 M BaCl2 (2nd)

          

  3. Calculate the pH of a solution prepared by dissolving 0.150 mol of benzoic acid HBz and 0.300 mol of sodium benzoate in water sufficient to yield 1.00 L of solution. The Ka of benzoic acid is 6.50 x 10^-5.11.14 apple apple. apple dog

          

  4. Calculate the pH of a solution that is 0.210 M in nitrous acid (HNO2) and 0.290 M in potassium nitrite (KNO2). The acid dissociation constant of nitrous acid is 4.50 x 10 ^-4.3.487 cat. dog hat green

          

  5. The pH of a solution prepared by dissolving 0.350 mol of solid methylamine hydrochloride (CH3NH3Cl) in 1.00 L of 1.10 M methylamine (CH3NH2) is ________. The Kb for methylamine is 4.40 x 10 ^-4. (Assume the final volume is 1.00L.)4.488 dog. dog hat hat

          

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