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Finding exact atomic weight of bromine

  1. Jul 26, 2012 #1
    A sample of carbon tetrabromide CBr4 contains 96.38% bromine and 3.62% carbon by weight, using the atomic weight of C as 12amu, find the exact atomic weight of bromine
     
  2. jcsd
  3. Jul 26, 2012 #2
    This is a math problem.

    Let "x" represent the total weight.

    Let "y" represent the weight of four bromine atoms.

    0.0362 * x = 12

    0.9638 * x = y

    y = 4*(bromine atomic weight)

    Solve for the atomic weight of bromine.
     
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