Titration and Conductance Analysis

The video tutorial explores the conductometric titration of barium hydroxide with H2SO4, focusing on predicting the conductance plot. It explains three possible outcomes for light intensity changes during the titration. The experiment is conducted, showing the formation of barium sulfate and changes in light intensity. The correct outcome is identified as the light dimming initially and returning as sulfate ions increase, demonstrating the solution's conductivity.

What is the main objective of the titration experiment discussed in the video?

• To determine the boiling point of the solution

• To measure the pH change during titration

• To predict the conductance plot of barium hydroxide with H2SO4

• To observe the color change of the solution

Which of the following is NOT a possible outcome for the conductance plot?

• The light stays bright until ions are used up

• The light gets brighter as ions precipitate

• The light gets dimmer and stays out

• The light gets dimmer and then returns

What is the purpose of the burette in the experimental setup?

• To stir the solution

• To hold the barium hydroxide solution

• To add H2SO4 to the barium hydroxide solution

• To measure the temperature of the solution

What is observed when H2SO4 is added to the barium hydroxide solution?

• The solution becomes clear

• The light gets brighter immediately

• The solution gets cloudy due to barium sulfate formation

• The temperature of the solution increases

Why does the light initially get dimmer during the titration process?

• Because ions are being used up to form a precipitate

• Because the light source is turned off

• Because the solution is heated

• Because the solution is diluted

What happens to the light intensity after all barium ions are used up?

• The light intensity decreases further

• The light intensity remains unchanged

• The light intensity increases as excess sulfate ions are added

• The light turns off completely

What is the role of sulfate ions in the solution after the formation of barium sulfate?

• They increase the solution's conductivity

• They decrease the solution's conductivity

• They have no effect on the solution

• They cause the solution to change color

Which statement best describes the final outcome of the titration experiment?

• The light never returns after dimming

• The light remains off due to lack of ions

• The light returns due to the presence of excess sulfate ions

• The light fluctuates continuously

What is the significance of the light returning in the experiment?

• It demonstrates the presence of ions in the solution

• It shows that the solution is saturated

• It means the solution is at boiling point

• It indicates the end of the experiment

What is the correct answer for the conductance plot prediction?

• A: The light stays bright until ions are used up

• B: The light gets dimmer and then returns

• D: The light gets brighter continuously

• C: The light gets dimmer and stays out