Chapter 16, Problem 16.1VP

Interpretation Introduction

Interpretation: The titration curve of a weak and a strong acid with a strong base is give. The curves are to be defined with the correct titration representation.

Concept introduction: The relative $\text{pH}$ of a weak acid is higher than that of a strong acid.

To determine: The titration curve that corresponds to the titration of weak acid and that corresponding to the titration of strong acid.

Answer to Problem 16.1VP

Solution

The titration curve that corresponds to the titration of weak acid and that corresponding to the titration of strong acid is red and blue curve, respectively.

Explanation of Solution

Explanation

The titration graph representing the titration of a weak and a strong acid with a same strong base is given as,

Figure 1

The initial $\text{pH}$ of blue curve is $0$, while that of red curve is $4$.

Stronger acid has lower initial $\text{pH}$ than weaker acid.

Therefore, blue curve represents the titration of a strong acid with a base and the red curve indicates the titration of a weak acid with a base.

Conclusion

Blue curve represents the titration of a strong acid with a base and the red curve indicates the titration of a weak acid with a base