Question

Multimeter Consider a galvanic cell consisting of the following two redox couples: Ag+(0.010 M) + e-→ Ag(s) Eo = +0.80 V oi a. Write the equation for the half-reaction occurring at the Salt bridge C (0.010 M) Ag (0.010AM b. Write the equation for the half-reaction occurring at the anode. Cr Ag c. Write the equation for the cell reaction. d. What is the standard cell potential, Eelli for the cell? e. Realizing the nonstandard concentrations, what is the actual cell potential, Ecel, for the cell? See equation 32.6. Hint: What is the value of n in the Nernst equation? *6. The extent of corrosion in the steel reinforcing rods (rebar) of concrete is measured by the galvanic cell shown in the diagram of the instrument. The half-cell of the probe is usually a AgC/Ag redox couple: AgCl+eAg+ C (1.0M)0.23 V Corrosion is said to be severe if the cell potential is measured at grea iron(ID) concentration on the rebar? See equation 32.6 Multimeter ter than 0.41 V. Under these conditions, what is the AgCl+e-Ag+CI er Ag -cr(1 M) Rebar Concrete Fe Fe2++2 364 Galvanic Cells, the Nernst Equation

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Answer 1

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