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Homework Help: Say your given a Compound.

  1. May 30, 2008 #1
    Say your given a Compound.......

    1. The problem statement, all variables and given/known data

    Cycloppropane (C3H6) disappears and rearanges to form propane and another compound at rate of .25mol/s

    2. Relevant equations


    How do you know what the chemical formula for propane is? in order to find the rate propane is being produced?


    3. The attempt at a solution
     
  2. jcsd
  3. May 30, 2008 #2
    Propane is one of the alkanes, which are usually memorized in basic chemistry classes, but the formula is C(n)H(2n+2), where n denotes the number of carbons. A carbon chain will have 2 hydrogens for each carbon, plus an additional one on each terminal carbon. For propane, n=3 as mentioned in the question (cyclic and non-cyclic will never change in number of carbons). Therefore 2n+2=8. The formula is C3H8.

    You can practice this using any alkane. Butane is C4H10. Decane is C10H22.
     
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