# Use the reaction shown to calculate the mass of iron that must be used to obtain 0.500 L of hydrogen at STP.

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$3Fe(s)  +4H_2O(l) \rightarrow Fe_3O_4(s)  +4H_2(g)$

asked Aug 23, 2015

## 1 Answer

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Bgf
answered Mar 2, 2016 by anonymous