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20 February, 19:04

The formula for acetic acid is CH3COOH. Seana wants to know how many oxygen atoms are in 0.12 moles of acetic acid. O a. 1x 10^25 atoms O b. 60 atoms Oc. 14x 10^23 atoms O d. 4.0 x 10^-24 atoms O e. 7.2 x 10^22 atoms

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  1. 20 February, 19:14
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    c. 1.4 x 10²³ oxygen atoms

    Explanation:

    The number of oxygen atoms in one molecule of CH₃COOH is 2.

    Avogadro's constant relates the number of molecules in one mole:

    6.022 * 10²³ mol⁻¹

    Thus, the number of oxygen atoms in one molecule of acetic acid can be converted to the number of oxygen atoms in one mole of acetic acid:

    (2 oxygen atoms / molecule) (6.022 * 10²³ molecule / mol) = 1.204 x 10²⁴ atoms per mole

    Finally, the number of oxygen atoms in 0.12 moles of acetic acid are calculated:

    (1.204 x 10²⁴ atoms / mol) (0.12 mol) = 1.4 x 10²³ atoms/mol
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