The %W/W of Ag in a sample of an alloy of unknown mass dissolved in nitric acid and diluted to volume in a 100ml volumetric flask was determined to be 64.4%. Titrating a 25ml portion with a 0.1078M KSCN requires 27.19ml to reach the end point. Calculate the mass of the sample in mg.

University of Ilorin CHM107 2020 past question

  1. 196mg
  2. 1960mg
  3. 1096mg
  4. 1.96mg

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