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7 February, 12:38

How many moles are in the following quantities of matter? 400 grams of rubbing alcohol

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  1. 7 February, 14:19
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    6.67moles

    Explanation:

    Rubbing alcohol has a formula as C3H8O.

    Molar Mass of C3H8O = (3x12) + (8x1) + 16 = 36 + 8 + 16 = 60g/mol

    From the question:

    Mass of rubbing alcohol (C3H8O) = 400g

    Number of mole = mass / molar Mass

    Number of mole = 400/60

    Number of mole = 6.67moles
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