SSCE VCE Chemistry Practical Work: A titration was performed to det

Question

A titration was performed to determine the concentration of an ethanoic acid, C₂H₄O₂, solution using the following procedure:

1. 25.00 mL of the C₂H₄O₂ solution was pipetted into a conical flask.
2. A few drops of indicator were added to the flask.
3. A burette was filled with standard sodium hydroxide, NaOH, solution.
4. The C₂H₄O₂ solution was then titrated with the NaOH solution.
5. Steps 1-4 were repeated until three concordant titres were obtained.

A systematic error could result if the:

a. burette tap leaked during one of the titrations.

b. burette readings were recorded to the nearest 0.1 mL.

c. number of drops of indicator was not consistent for each titration.

d. actual concentration of the standard NaOH solution was lower than the stated concentration.

A titration was performed to determine the concentration of an ethanoic acid, C₂H₄O₂, solution using the following procedure: 1 - VCE - SSCE Chemistry - Question 4 - 2021 - Paper 1

Worked Solution & Example Answer:A titration was performed to determine the concentration of an ethanoic acid, C₂H₄O₂, solution using the following procedure: 1 - VCE - SSCE Chemistry - Question 4 - 2021 - Paper 1

A systematic error could result if the:

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