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25 November, 00:47

Calculate the number of moles of carbon atoms present in 1.8g of ethanol

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  1. 25 November, 04:35
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    The formula of ethanol is C2H6O

    From the periodic table:

    molar mass of carbon = 12 gm

    molar mass of hydrogen = 1 gm

    molar mass of oxygen = 16 gm

    molar mass of ethanol = 2 (12) + 6 (1) + 1 (16) = 46 gm

    number of moles = mass / molar mass = 1.8 / 46 = 0.039 moles
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