Question

(1) In the first part of this lab, you need to determine the half-cell reduction potential of each metal. To do so, an inert electrode is needed. Which probe will you choose to use as the inert electrode and in what solution will you insert the inert probe? Group of answer choices

Copper probe in 1 M HCl solution

Carbon probe in 0.1 M HCl solution

Carbon probe in 1 M HCl solution

Copper probe in 0.1 M HCl solution

(2) At standard conditions, the measured voltage of the reduction half-reaction is defined as the standard reduction potential, $LaTeX: E^{\circ}_{cell}$ E c e l l ∘. Which one the following condition is at standard conditions?

Group of answer choices

273 K and concentration of 0.1 M for the aqueous ions

273 K and concentration of 1.0 M for the aqueous ions

25 °C and concentration of 0.1 M for the aqueous ions

25 °C and concentration of 1.0 M for the aqueous ions

Answer 1

(1) inert electrode should consists of Carbon.

(An inert electrode is there for electrical conduction , it should be chemically inert )

Carbon probe in 1M HCl solution (Answer)

(2) the standard conditions are 25℃ and 1.0 M concentration of aqueous ions . (Answer)