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How many moles of carbon are in 1.271 grams of ethanol?

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  1. calculate the molar mass of ethanol= 46.068
    divide by the number of grams in sample (1.271 grams)
    which equals .0275 mol C2H5OH (ethanol)
    because there are two moles of carbon in each mole of ethanol, multiply .0275 by 2. the ANSWER: .055 mol Carbon

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