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An atom of element ‘X’ is 1.02 times heavier than that of an atom of ‘Y’. An atom of ‘Y’ is 0.1809 times heavier than that of an atom of oxygen. What is the atomic weight of ‘X’:
  • a)
    2.952
  • b)
    5.314
  • c)
    4.4
  • d)
    2.6
Correct answer is option 'A'. Can you explain this answer?
Verified Answer
An atom of element ‘X’ is 1.02 times heavier than that of ...
An atom of 'Y' is 0.1809 times heavier than that of an atom of oxygen.
Weight of a mole atom of oxygen is 16 g.
Weight of a mole atom of Y =0.1809 X 16=2.8944 g.
An atom of element 'X' is 1.02 times heavier than that of an atom of 'Y'.
Weight of a mole atom of X =1.02 X 2.8944=2.952 g.
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An atom of element ‘X’ is 1.02 times heavier than that of ...
Given Data:
An atom of element 'X' is 1.02 times heavier than that of an atom of 'Y'.
An atom of 'Y' is 0.1809 times heavier than that of an atom of oxygen.

Calculations:
Let the atomic weight of oxygen be 'O'.
Since an atom of 'Y' is 0.1809 times heavier than an atom of oxygen, the atomic weight of 'Y' is 1.1809O.
Given that an atom of 'X' is 1.02 times heavier than an atom of 'Y', the atomic weight of 'X' is 1.02 * 1.1809O = 1.202018O.

Final Calculation:
Atomic weight of 'X' = 1.202018 * Atomic weight of oxygen (O) = 1.202018
Since the atomic weight of oxygen is approximately 2.47, the atomic weight of 'X' is approximately 1.202018 * 2.47 = 2.952.
Therefore, the atomic weight of element 'X' is approximately 2.952. Hence, option 'A' is correct.
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An atom of element ‘X’ is 1.02 times heavier than that of an atom of ‘Y’. An atom of ‘Y’ is 0.1809 times heavier than that of an atom of oxygen. What is the atomic weight of ‘X’:a)2.952b)5.314c)4.4d)2.6Correct answer is option 'A'. Can you explain this answer?
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