Titration Curve Analysis

The video tutorial explains how to plot a titration curve by identifying the initial pH, equivalence point, and half equivalence point. It discusses the pH values at these points and provides instructions on sketching the curve. The tutorial also covers the concept of buffering and equilibrium during titration, emphasizing the changes in pH as more titrant is added.

What is the initial step in plotting a titration curve?

• Determining the endpoint of the titration

• Calculating the molarity of the solution

• Marking the half equivalence point

• Identifying the initial pH and equivalence point

What was the pH value at the equivalence point in the discussed problem?

• 4.77

• 7.00

• 2.54

• 1.25

At what volume of hydrochloric acid was the equivalence point reached?

• 15 milliliters

• 25 milliliters

• 30 milliliters

• 29 milliliters

What is the significance of the half equivalence point in a titration curve?

• It shows the point where the pH is neutral

• It is where half the titrant has been added

• It indicates the start of the titration

• It marks the end of the titration

What was the pH at the half equivalence point in the problem?

• 1.25

• 4.77

• 2.54

• 7.00

What happens to the pH as more hydrochloric acid is added during the titration?

• The pH fluctuates

• The pH decreases

• The pH remains constant

• The pH increases

Why does the titration curve start to level off after the half equivalence point?

• Because the solution becomes saturated

• Because of the buffering effect

• Due to the presence of excess base

• As a result of reaching the endpoint

What is the role of the conjugate base in the buffering effect during titration?

• It decreases the pH

• It increases the acidity

• It reacts with the conjugate acid

• It neutralizes the solution

What indicates the completion of the titration process?

• The pH becomes neutral

• The solution changes color

• The equivalence point is reached

• The pH stops changing

How does the titration curve appear after the equivalence point is reached?

• It becomes more acidic

• It levels off completely

• It becomes more basic

• It becomes a straight line