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A sample of iron metal is placed in a graduated cylinder. It is noted that 10.4 mL of water is ...

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A sample of iron metal is placed in a graduated cylinder. It is noted that 10.4 mL of water is ...

A sample of iron metal is placed in a graduated cylinder. It is noted that 10.4 mL of water is displaced by the iron. The iron is then reacted with excess hydrochloric acid to produce iron (II) chloride and hydrogen gas. Given the density for iron is 7.86 g/mL, how many grams of iron (II) chloride are produced in the reaction?
Fe(s) + 2HCl(aq) → FeCl₂(aq) + H₂(g)

▸ 23.6 g

▸ 47.2 g

▸ 185 g

▸ 3.00 g

▸ 81.7 g

Textbook

Chemistry

Edition: 11^th

Authors: Chang, Goldsby

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Good timing, thanks!

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