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Answered 2013-09-10 22:21:26

A mole of an element is X grams of the element, where X is the number of the elements atomic mass.

The atomic mass of iron is 55.85, so one mole of iron is 55.87 grams.

Two moles of iron is 111.7 grams.

101.7 grams is 101.7/55.85 moles = 1.82 moles.

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