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Edexcel IAL Chemistry 3.P8 Processing and analysing practical data

Read each scale at its stated resolution, reject values only with a justified rule, show the mathematical relationship and round the final result rather than intermediate steps.

Syllabus
First assessment 2019
Course
Chemistry YCH11
Level
AS

Exam points

  • Read initial and final apparatus scales and calculate the delivered volume or titre.
  • Calculate means, density or weighted quantities from tabulated practical measurements.
  • Apply correct units and significant figures to the final derived value.

3.P8—Processing and analysing data question 1

[Maximum number: 2]

Sodium hydroxide solution reacts with carbon dioxide in the air and should be standardised before use. Ethanedioic acid may be used for this standardisation.

The titration results are shown.

Table for Question 3.P8—Processing and analysing data question 1 — Edexcel A-Level Chemistry AS

Complete the table and calculate the mean titre.

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