Chapter 17, Problem 17.HE

Interpretation Introduction

Interpretation:

The percentage of water in polymer in Karl Fischer water analysis 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 unit of q is Coulombs, I is Ampere and t is seconds.

$\begin{array}{l}\text{q}\text{=}\text{moles}\text{of}\text{electrons}\text{×}\text{Faraday}\text{constant}\\ \\ \text{Faraday}\text{constant}\text{=}\frac{\text{q}}{\text{moles}\text{of}\text{electrons}}\end{array}$