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26 August, 04:34

How many moles are in 1.35 x10^23 representative particles of Fluorine?

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Answers (2)
  1. 26 August, 04:46
    0
    Atomic weight of fluorine is 19 g/mol.

    We know that, 1 mol (19 g) of Fluorine will have Avagadro number (6.022 X 10^23) of Fluorine atoms

    Thus, we have 6.022 X 10^23 atoms of F ≡ 19 g of F

    Therefore, 1.35 x10^23 atoms of F ≡ 4.259 g of F

    Now, 19 g of Fluorine ≡ 1 mole

    ∴, 4.259 g of Fluorine ≡ 0.224 mole

    Answer: 0.224 moles are in 1.35 x10^23 representative particles of Fluorine
  2. 26 August, 07:22
    0
    Answer: 0.224 moles

    Explanation:

    1) Avogadro's number is 1 mol = 6.022 x 10²³, which means that there are 6.022 x 10²³ particles in 1 mol.

    2) Divide the number of of particles by Avogadro's number to find how many moles that is:

    (1.35x10²³ / (6.022x10²³) = 0.224 moles
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