6. Consider a galvanic cell consisting of

5Fe²⁺(aq) + MnO₄^- (aq) + 8H⁺(aq) 5Fe³⁺(aq) + Mn²⁺(aq) + 4H₂O(l)

i) Write the oxidation and reduction half-reactions

ii) Write the reaction using cell notation.

iii) Which reaction occurs at the cathode?

iv) Which reaction occurs at the anode?

7. The solubility product of calcium fluoride (CaF₂) is 3.4510¹¹. If 1.5 mL of a 0.10 M NaF is added to 130 mL of a 1.010⁵ M solution of Ca(NO₃)₂, will CaF₂ precipitate?