Iron is an element that is essential in the human diet. Some people need to take iron supplement tablets to ensure an adequate intake of iron. You will investigate the mass of iron in an iron supplement tablet by titrating a solution with potassium manganate(VII). $$\[ \begin{gathered} \mathrm{Fe}^{2+}(\mathrm{aq}) \rightarrow \mathrm{Fe}^{3+}(\mathrm{aq})+\mathrm{e}^{-} \\ \mathrm{MnO}_{4}^{-}(\mathrm{aq})+8 \mathrm{H}^{+}(\mathrm{aq})+5 \mathrm{e}^{-} \rightarrow \mathrm{Mn}^{2+}(\mathrm{aq})+4 \mathrm{H}_{2} \mathrm{O}(\mathrm{l}) \end{gathered} \]$$ FB 1 is an aqueous solution of iron supplement tablets made by dissolving 14 tablets in $$\(1.00 \mathrm{dm}^{3}\)$$ of solution. The iron in each tablet is iron(II) sulfate, $$\(\mathrm{FeSO}_{4} \bullet 7 \mathrm{H}_{2} \mathrm{O}\)$$. FB 2 is $$\(0.0100 \mathrm{~mol} \mathrm{dm}^{-3}\)$$ acidified aqueous potassium manganate(VII), $$\(\mathrm{KMnO}_{4}\)$$. FB 3 is dilute sulfuric acid, $$\(\mathrm{H}_{2} \mathrm{SO}_{4}\)$$. A student used all the FB 3 and suggests that dilute hydrochloric acid would be a suitable replacement. Suggest whether the student is correct or not. Explain your answer. . .

Answer:

Knowledge points:

Solution: