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Homework Help: Mass of Au produced?

  1. Nov 12, 2008 #1
    1. The problem statement, all variables and given/known data
    What mass of Au is produced when 0.0500 mol of Au2S3 is reduced completely with excess H2?

    2. Relevant equations

    3. The attempt at a solution

    .100 mol Au3+ x 197/1 = 19.7 g

    19.7 g is apparently wrong though according to the book; what am I doing wrong?
  2. jcsd
  3. Nov 13, 2008 #2


    User Avatar

    Staff: Mentor

    Look for a new book, 19.7g is the correct answer.
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