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2 November, 15:38

A chemist measures the amount of iodine solid produced during an experiment. she finds that 1.6 g of iodine solid is produced. calculate the number of moles of iodine solid produced.

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  1. 2 November, 17:50
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    Mass of iodine solid produced = 1.6 g

    Iodine solid has a molecular formula : I2

    Atomic mass of iodine = 126.904 g/mol

    Therefore, molar mass of I2 solid = 2 * 126.904 = 253.808 g/mol

    Number of moles of a given substance is the ratio of its mass to the molar mass

    # moles of I2 solid = mass of I2 solid/molar mass = 1.6 g/253.808 = 0.00630 moles

    Hence, the # moles of iodine solid produced is 0.00630 moles
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