Chapter 17, Problem 17.16P

(a)

Interpretation Introduction

Interpretation:

The number of moles of electrons that flow  while applying current of five milliampere in an electric circuit has to be determined.

Concept Introduction:

At any point in an electric circuit the charge q is the product of current I and time t.

$\text{q}\text{=}\text{I}·\text{t}$

The number of moles of electrons n reacts in a reaction with given time t is

$\text{Reacted}\text{moles}\text{=}\frac{\text{I}\text{.}\text{t}}{\text{nF}}$

(b)

Interpretation Introduction

Interpretation:

The volume of given solution of reducing agent are needed to transfer electrons has to be determined.

Concept introduction:

At any point in an electric circuit the charge q is the product of current I and time t.

$\text{q}\text{=}\text{I}·\text{t}$

The number of moles of electrons n reacts in a reaction with given time t is

$\text{Reacted}\text{moles}\text{=}\frac{\text{I}\text{.}\text{t}}{\text{nF}}$