ANSWERS: 2
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Benzene is 78 g/mol. .7 mol X 78 g/mol = 54.6 g.
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Molecular weight of benzene = (6 x 12) + (6 x 1) = 78 Therefore, the mass of 0.7 moles of benzene is (0.7 x 78) = 54.6 g
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