Titration Makeup PEP

What are the reactants for Part A of this experiment?

• Unknown molarity HCl

• 0.25 M HCl

• 0.25 M NaOH

• 0.5 M NaOH

• 0.25 M Buffered CH₃COOH

What is the titrant in Part B of this experiment?

• 0.05 M CH₃COOH

• 0.05 M NaOH

• 0.5 M HCl

• 0.25 M Buffered CH₃COOH

Briefly explain how a burette is conditioned.

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What does the following graph display?

• A strong acid titrated against a strong base

• A strong base titrated against a strong acid

The following graph displays a strong base titrated against a strong acid. Which region of this graph would you expect to change the most significantly if instead the strong base was titrated against a buffered acid?

• A

• B

• C

• No significant change would occur

What is used to precisely add the analyte to the reaction vessel in all four parts of the experiment?

The ________ point is when the moles of OH^- equals the moles of H⁺ during a titration.

When the endpoint of the reaction in Part A has been reached the solution will turn from ______ (color) to _______ (color).

What is an acid buffer composed of?

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Which of the following indicators would be appropriate to use for a strong acid/strong base titration?

• phenolphthalein

• thymophthalein

• thymol blue

• methyl red

• phenol red