titrations

• What type of reaction occurs during a titration between sulfuric acid and sodium hydroxide?

  A neutralization reaction
• How can you determine the concentration of sulfuric acid using titration?

  By knowing the volume of sodium hydroxide
• What are the stages involved in carrying out a titration?

  1. Transfer 25 cm³ of sodium hydroxide to a conical flask.
  2. Add 5 drops of an indicator (e.g., methyl orange).
  3. Place the flask on a white tile.
  4. Fill a burette with sulfuric acid.
  5. Add acid to the alkali until neutral.
  6. Swirl the solution to mix.
  7. Read the volume of acid added from the burette.
  8. Repeat until two readings are within 0.1 cm³.
  9. Calculate the mean for final volume.
• What is the purpose of using a conical flask in titration?

  To reduce the risk of splashing
• What is the correct method for using a pipette?

  Use a pipette filler to draw liquid
• What happens when you add methyl orange to the alkali?

  It indicates the pH change during titration
• Why is a white tile used during titration?

  To see the color change more clearly
• What color change indicates neutralization with methyl orange?

  From yellow to permanently red
• How should you add sulfuric acid to the alkali during titration?

  Add drop by drop until neutral
• What is the correct way to read the volume from a burette?

  At the bottom of the meniscus
• What is the significance of repeating the titration several times?

  To obtain consistent readings within 0.1 cm³
• What should you do with the readings obtained from multiple titrations?

  Calculate the mean for final volume