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For the reaction Fe3+(aq) + Co2+(aq) → Fe2+(aq) + Co3+(aq), what is the reducing agent?

A voltaic cell has a silver bar as the cathode with a solution containing AgNO3 surrounding the cathode. It has a copper bar as the anode with a solution containing Cu(NO3)2 surrounding the anode. The salt bridge is KCl. Where will the K+ migrate to keep electrical neutrality?

For the reaction Fe3+(aq) + Co2+(aq) → Fe2+(aq) + Co3+(aq), what is reduced?

Which of the following equations is the balanced reduction half reaction for Ag+(aq) + Fe(s) → Fe2+(aq) + Ag(s)?

Assuming standard conditions, arrange the following in order of increasing strength as reducing agents in acidic solution: Cu2+, Cl2, O2.

What is the oxidation of a pure element?

In the reaction I2O3(s) + 5CO(g) → I2(s) + 5CO2(g), which element undergoes a change of 2 in its oxidation number (could be +2 or -2)?

The polyprotic weak acid phosphoric acid, H3PO4, has 3 ionizable protons with Ka1 = 7.5 x 10-3 M, Ka2 = 6.2 x 10-8 M, and Ka3 = 4.8 x 10-13 M. Which Ka would be the most difficult to determine using the acid-base titration technique discussed in class?

Predict whether the equivalence point for a titration of NH3 with HCl will be above, below, or at pH 7.0.

Which is the half-reaction that occurs at a hydrogen electrode in acidic aqueous solution when it serves as the anode of a voltaic cell and what charge is the anode.