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Learning objective

Clarify why distilled water is preferred in practical chemistry over tap water due to its lower chemical impurity content.

Read the explanation, check the common trap, then practise with flashcards and questions.

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  • Read the explanation.
  • Check key terms.
  • Practise with linked questions.
Cambridge IGCSE ChemistryChemistry of the environmentCore content

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Quick explanation

Clarify why distilled water is preferred in practical chemistry over tap water due to its lower chemical impurity content

  • This point belongs to Water, especially Water outcomes.
  • You need to be able to clarify why distilled water is preferred in practical chemistry over tap water due to its lower chemical impurity content.
  • The key ideas to know are Explain.
  • Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.

Key concepts

Explain

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Paper 3 structured question: Water

Paper 3Theory (Core)1 marks

Description

Comparison of Water Types

In a laboratory setting, two types of water are commonly used: distilled water and tap water. Distilled water is produced through distillation, while tap water contains various dissolved minerals and chemicals.

  1. a

    State one reason why distilled water is preferred in experiments over tap water.

    Aim for approximately 1 distinct marking point.

    [1]
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