Chemistry

Suppose the elements x and y combine to form two compounds xy2 and x3y2. When 0.1 mole of xy2 weighs 10g and 0.05 mole of x3y2 weighs 9g, the atomic weight of x and y are

a) 40,30
b) 60,40
c) 20,30
d) 30,20

  1. 👍 0
  2. 👎 0
  3. 👁 754
  1. find the mole weights

    x + 2y = 100

    3x + 2y = 180

    solve the system for x and y

    1. 👍 0
    2. 👎 2

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