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8 November, 17:38

Find the grams in 1.26x10^-4 mol of HC2H3O2

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  1. 8 November, 17:48
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    All you have to do is take the number of moles you have a multiply by the molar mass. The number of moles is given. To find the molar mass, add the atomic weights that make up your molecule.

    Four hydrogen = Four amu (4*1)

    Two carbon = 24 amu (2*12)

    Two Oxygen = 32 (2*16)

    Summing these, we have a molar mass of 60 grams/mole.

    Multiply this by the number of moles and we get:

    60 (g/mol) * 1.26*10^-4 mol =.00756 g.
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