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25 November, 13:14

How many formula units make up 19.0 g of magnesium chloride (MgCl2) ?

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  1. 25 November, 16:42
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    To convert the mass of a compound to formula units, the conversion factor is Avogadro's number, 6.022 x10^23 formula units / mol and its molar mass. In this case, we are given with 19.0 grams of magnesium chloride which has a mass of 95.21 g/mol. Hence the answer is 1.20 x 10^23 formula units.
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