chemistry

average atomic mass of magnesium is 24.31 amu. this magnesium is composed of 79 mole % of ^24 Mg and remaining 21mole % of ^25 Mg. calculate mole % of ^26Mg.

  1. 👍 9
  2. 👎 3
  3. 👁 2,870
asked by shish
  1. Something is askew here. If you have 79% of one isotope and 21% of the other, that adds to 100% so there is no room for any other isotope.

    1. 👍 2
    2. 👎 11
  2. 10

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    2. 👎 7
    posted by Shubham
  3. 79(24)+x(26)+(21-x)25 whole divided by 100 = 24.31 you get answer by solving X as 10

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    2. 👎 8
  4. Ans. 9

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    2. 👎 13
  5. Wrong answer

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    2. 👎 4
  6. Turtleneck tujhe badkismati

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    2. 👎 2

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