Quantitative analysis
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Titration can be used to determine the concentration of a potassium hydroxide solution. A pipette is used to measure 20.0 cm3 of the potassium hydroxide solution into a conical flask, which is then titrated against dilute nitric acid.

Before the titration is carried out, both the pipette and the conical flask are rinsed with distilled water.

a.

Explain the effect, if any, that traces of distilled water left in the pipette after rinsing would have on the volume of dilute nitric acid required to reach the end-point.

[2]
b.

Explain the effect, if any, that traces of distilled water left in the conical flask after rinsing would have on the volume of dilute nitric acid required to reach the end-point.

[2]

Quantitative analysis Questions

Practise Edexcel GCSE Chemistry Quantitative analysis with exam-style questions for Foundation and Higher tier. 100 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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Quantitative analysis Questions

  1. GCSE
  2. /Chemistry
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