Hydrobromic acid dissolves solid iron according to the following reaction: Fe(s)+2HBr(aq)?FeBr2(aq)+H2(g)
What mass of HBr (in g) would you need to dissolve a 3.0?g pure iron bar on a padlock? Express your answer using two significant figures. m=______________g
What mass of H2 would be produced by the complete reaction of the iron bar?
Express your answer using two significant figures. m=_____________________g
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