4) 300cm of Hydrogen chloride gas were passed over 7.0g of heated iron fillings until there was no further
change. The reaction vessel was then allowed to cool to room temperature. Use the equation below to
determine the mass of iron that remained at the end of the experiment (molar gas volume = 24000cm"; Fe=56).
Fe(s) + 2HCl(g) → FeCl2(s) + H2(g)
(3 mks)
50
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4) 300cm of Hydrogen chloride gas were passed over 7.0g of heated iron fillings until there was no f...
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