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  • Xenon Atom Count: Calculate Atoms in 132g - Molar Mass & Avogadro's Number
    To determine the number of atoms in 132 grams of xenon, we need to use the concept of molar mass and Avogadro's number.

    1. Molar Mass of Xenon: The molar mass of xenon (Xe) is 131.293 grams per mole. This means that one mole of xenon weighs 131.293 grams.

    2. Number of Moles: To calculate the number of moles in 132 grams of xenon, we divide the given mass by the molar mass:

    ```

    Number of moles (n) = Mass (m) / Molar Mass (M)

    n = 132 g / 131.293 g/mol

    n ≈ 1.0045 moles

    ```

    3. Avogadro's Number: Avogadro's number represents the number of particles (atoms, molecules, ions) present in one mole of a substance. It is approximately 6.022 x 10^23 particles per mole.

    4. Number of Atoms: Multiplying the number of moles by Avogadro's number gives us the total number of atoms in 132 grams of xenon:

    ```

    Number of atoms = Number of moles (n) × Avogadro's Number (N)

    Number of atoms = 1.0045 moles × 6.022 x 10^23 atoms/mol

    Number of atoms ≈ 6.043 x 10^23 atoms

    ```

    Therefore, approximately 6.043 x 10^23 atoms are present in 132 grams of xenon.

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