Chapter 19, Problem 19.125P

(a)

Interpretation Introduction

Interpretation:

The slope $\left(\Delta pH/\Delta V\right)$ for all pairs of adjacent points and the average volume $\left(V_{avg}\right)$ for each interval have to be calculated. 

Concept Introduction:

Calculation of slope:

$Slope=\frac{ChangeinvalueinY-axis}{ChangeinvalueinX-axis}$

(b)

Interpretation Introduction

Interpretation:

$\Delta pH/\Delta Vvs.V_{avg}$ has to be plotted. From the plot the steepest slope which is the volume at the equivalence point has to be determined. 

Concept Introduction:

Calculation of slope:

$Slope=\frac{ChangeinvalueinY-axis}{ChangeinvalueinX-axis}$