A gallon of isopropanol (IPA) weighs 6,55 lbs. Since 1 lb=453.6 grams, calculate how many moles of ethanol (MM=60.1 grams per mole) are in a gallon of this substance.

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  1. It's supposed to be 6.55 lbs.

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  2. 6.55 lbs x (453.6 g/lb) = ? grams.
    Then mols = grams/molar mass = ?

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  3. Would the answer be 49.44 moles?

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