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6 July, 08:09

How many atoms of O are in 2.12 miles of NO3

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  1. 6 July, 08:23
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    38.3*10²³ atoms of oxygen

    Explanation:

    Given dа ta:

    Moles of NO₃ = 2.12 mol

    Atoms of oxygen = ?

    Solution:

    One mole of any substance contain 6.022 * 10²³ atoms.

    The number 6.022 * 10²³ is called Avogadro number.

    It is the number of atoms, ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.

    One mole of NO₃ = 6.022 * 10²³ atoms

    one molecule of NO₃ contain three atoms of oxygen thus in 2.12 moles number of oxygen atoms are:

    2.12*3 * 6.022 * 10²³ atoms = 38.3*10²³ atoms of oxygen
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