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an iron ore sample was dissolved in Hydrochloric acid the iron was obtained as Fe2+. The solution was titrated with 41.08 mL of a 0.458 M solution of Ce+. Calculate the mass of iron in the original ore sample.

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Is that Ce+4?
moles Ce = M x L
moles Fe = moles Ce
mass Fe = moles Fe x molar mass Fe.

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