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Help with Chem rate of reaction problem

  1. Jul 22, 2006 #1
    4PH3(g) ------- P4(g) + 6H2(g)
    If, in a certain experiment, over a specific time period, 0.0063 mol PH3 is consumed in a 2.0 L container each second of reaction, what are the rates of production of P4 and H2 in this experiment.

    Any idea about this problem? divide 2.0 to 1.0 and then .0063 to .00315 but from there I have no clue. Anybody have a clue? Thanks a bunch!
     
  2. jcsd
  3. Jul 22, 2006 #2
    the rate of consuming of PH3 is 0,0063 mol / s. Now use stoichiometry to get to know the rates of formation of P4 and H2:

    1. when 4 mol PH3 has reacted, then 1 mol P4 is formed --> How much P4 is formed per second when 0,0063 mol PH3 has reacted (per second) ?

    2. when 4 mol PH3 has reacted, then 6 mol H2 is formed --> How much H2 is formed per second when 0,0063 mol PH3 has reacted (per second) ?
     
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