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22 March, 07:34

We know that one mole of Oxygen gas contains two moles of O atoms (remember that O is a diatomic element in nature and is written O2). If we have a sample of O2 that contains 1.0000 x 10-20 mol, we will have (blank)

atoms of O in the sample.

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  1. 22 March, 10:16
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    12.4 * 10∧3 atoms

    Explanation:

    Given dа ta:

    moles of oxygen molecule = 1.0000 x 10-20 mol

    atoms = ?

    Solution:

    32 g O2 = 1 mol = 6.02 * 10∧23

    1.0000 x 10∧-20 mol * 6.02 * 10∧23 * 2 = 12.4 * 10∧3 atoms
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