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6 June, 13:06

Arrange these molecules in order of decreasing mass: C 6 H 14 , NO 2 , Fe 2 O 3 , and CaCO

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  1. 6 June, 13:21
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    The decreasing order of the mass of the molecules are:

    Fe2O3>C6H14>CaCO>NO2

    Explanation:

    Let us calculate the atomic mass of the molecules given:

    C6H14 Atomic mass of 1 carbon atom = 12.01 amu

    so, 6*12+1*14 Atomic mass of hydrogen=1.007

    = 86 g/mol

    Atomic mass of NO2

    = 14 + (2*15.9)

    = 14 + 31.8

    = 45.8 g/mol

    Atomic mass of Fe203

    (2*55.845) + (3*15.9)

    = 159.69 g/mol

    Atomic mass of CaCO

    40.07+12.0107+15.99

    = 68.07g/mol

    The decreasing order of the mass of the molecules are:

    Fe2O3>C6H14>CaCO>NO2
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