Acid and Base Titration Curves Video Lessons

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Concept: Understanding an Acid–Base Titration Curve.

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Concept: The Equivalence Point. 

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Example: The following questions refer to the titration curve given below. 1) The titration curve shows the titration of     a) a strong acid with a strong base    b) a weak acid with a strong base    c) a strong base with a strong acid    d) a weak base with a strong acid       2) Which point on the titration curve represents a region where a buffer solution has formed?      a) point A      b) point B      c) point C      d) point D 3) Which point on the titration curve represents the equivalence point?      a) point A      b) point B      c) point C      d) point D 4) Which of the following would be the best indicator to use in the titration?     a) erythrosin B, pKa=2.9    b) methyl blue, pKa=5.4    c) bromthymol blue, pKa= 6.8    d) o-cresonphthalein, pKa=9.0   

Problem: Equal volumes of two acids are titrated with 0.10 M NaOH resulting in the two titration curves shown in the following figureWhich curve corresponds to the more concentrated acid solution?

FREE Expert Solution

In this problem, we are asked to determine which of the two titration curves corresponds to the more concentrated acid solution.

Titration curves help us to understand the neutralization occurring between an acid and base in order to identify the equivalence point.


We answer the problem by examining the titration curve given:

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Problem Details

Equal volumes of two acids are titrated with 0.10 M NaOH resulting in the two titration curves shown in the following figure

A line graph shows that the blue curve starts at a higher pH, increases quicker, and has a smaller increase at the equivalence point than the red curve. A line graph has milliliters NaOH on the X-axis, ranging from 0 to 50 with intervals of 10, and pH on the Y-axis, ranging from 0 to 12 with intervals of 2. The blue curve (to the left of the red curve) starts at a higher pH, increases quicker, and has a smaller increase at the equivalence point than the red curve.

Which curve corresponds to the more concentrated acid solution?

Learn this topic by watchingAcid and Base Titration Curves Concept Videos
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