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13 April, 08:39

A flask contains 0.450 mol of liquid bromine, br2. determine the number of bromine molecules present in the flask.

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  1. 13 April, 08:49
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    So number molecules in the sample = moles x 6.022x10^23 molecules/mole

    = 0.450 mol x 6.022x10^23

    = 2.71x10^23 molecules
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