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7 July, 21:15

Calculate the formula mass of ethanol, c2h5oh. express your answer to three significant figures and include the appropriate units.

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  1. 8 July, 00:01
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    To answer this question, you need to understand how to calculate a compound molecular mass. In ethanol, there are 2 carbon, 6 hydrogen, and 1 oxygen atoms. The molecular weight of carbon is 12, hydrogen is 1, and oxygen is 16. Then, the calculation would be:

    ethanol mass = 2*12 + 6*1 + 1*16 = 46g/moles
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