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19 May, 19:05

Sulfur as 4 isotope sulfur-32 is 95.0%, sulfur-33 is 0.76%, sulfur-34 is 3.22%, and sulfur-36 is 0.89% abundant. Calculate its average atomic mass

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  1. 19 May, 19:21
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    average atomic mass of sulfur = 32.066 amu

    Explanation:

    The average atomic mass is calculated as following:

    average atomic mass = fraction of isotope (1) * mass number of the isotope (1) + fraction of isotope (2) * mass number of the isotope (2) + ... + fraction of isotope (n) * mass number of the isotope (n)

    average atomic mass of sulfur = (95/100) * 32 + (0.76/100) * 33 + (3.22/100) * 34 + (0.89/100) * 36 = 32.066 amu

    (amu - atomic mass units)
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