## Chemistry and Chemical Reactivity (9th Edition)

a) $2\ Fe(s)+3\ Cl_2(g)\rightarrow 2\ FeCl_3(aq)$ b) Number of moles of iron: $10.0\ g\div 55.845\ g/mol=0.179\ mol$ Mass of chlorine: $0.179\ mol\times3/2\times 70.90\ g/mol=19.04\ g$ Mass of chloride: $0.179\ mol\times 162.2\ g/mol=29.03\ g$ c) $18.5/29.03\times 100\%=63.72\%$ d) Number of moles of chlorine: $10.0\ g\div 70.90\ g/mol=0.141\ mol$, it's the limiting reactant Mass of chloride: $0.141\ mol\times 2/3\times 162.2\ g/mol=15.25\ g$