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20 June, 14:35

A 36 gram sample contains 28 grams of fe and 8 grams of oxygen. determine the percent composition for each of the elements.

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  1. 20 June, 17:35
    0
    The sample contains both Fe and oxygen

    The mass of the sample is 36 g

    28 g are Fe and 8 g are O

    So to find the percent composition we can calculate using the following formula

    Percent composition of the element = mass of the element / mass of the sample x 100%

    Percent composition of Fe = 28 g / 36 g x 100 % = 77.8%

    Percent composition of O = 8 g / 36 g x 100 % = 22.2%
  2. 20 June, 18:14
    0
    The percentage composition for each of the elements is

    Fe = 77.8 % oxygen = 22.2%

    calculation

    % composition = mass of the element/total mass x100

    total mass = 36g

    The % composition of Fe = 28/36 x100 = 77.8%

    The % composition of oxygen = 8/36 x100 = 22.2%
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