Understanding Strong Acid-Base Titration

The video tutorial explains the concepts of strong acids and bases, using hydrochloric acid and sodium hydroxide as examples. It covers how to write complete and net ionic equations for their reactions. The tutorial then delves into titration curves, explaining how to interpret them and find the equivalence point. It also demonstrates how to calculate the concentration of an unknown solution using titration data. Finally, it compares titration curves of strong acid-base and base-acid reactions, highlighting the differences in pH changes.

What is the role of sodium hydroxide in the titration process described?

• It is the titrant.

• It is the analyte.

• It is a catalyst.

• It is a spectator ion.

Which ions are considered spectator ions in the reaction between hydrochloric acid and sodium hydroxide?

• Hydrogen and chloride ions

• Sodium and chloride ions

• Sodium and hydroxide ions

• Hydroxide and hydrogen ions

What is plotted on the y-axis of a titration curve?

• Temperature of the solution

• Volume of titrant

• Concentration of analyte

• pH of the solution

At the equivalence point of a strong acid-strong base titration, what is the pH of the solution?

• Depends on the concentration

• Greater than 7

• Exactly 7

• Less than 7

In the particulate diagrams, what happens to the hydroxide ions added after the equivalence point?

• They convert to hydrogen ions.

• They remain unreacted.

• They form a precipitate.

• They react with remaining acid.

How many milliliters of sodium hydroxide were needed to reach the equivalence point in the titration?

• 200 mL

• 100 mL

• 50 mL

• 20 mL

What is the initial concentration of hydrochloric acid calculated from the titration data?

• 0.20 M

• 0.10 M

• 0.05 M

• 0.15 M

When titrating a strong base with a strong acid, how does the initial pH compare to the titration of a strong acid with a strong base?

• It is higher.

• It is lower.

• It varies randomly.

• It is the same.

What happens to the pH as more acid is added past the equivalence point in a strong base-strong acid titration?

• It fluctuates.

• It decreases.

• It increases.

• It remains constant.

Which statement is true about the titration curve of a strong base with a strong acid compared to a strong acid with a strong base?

• The final pH is higher.

• The initial pH is lower.

• The equivalence point pH is different.

• The curve is a mirror image.