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Exam-style practice

Preparation of salts answer explanations

Review worked answers and explanations for Preparation of salts. Aligned to Cambridge IGCSE Chemistry.

Answer explanations

Question 1 of 10

Review the answer support, then move sideways through the set.

Paper 6 structured question: Preparation of salts

Paper 6Alternative to PracticalPractical1 marks

Method

Method for Preparing a Soluble Salt

To prepare sodium chloride from hydrochloric acid and sodium hydroxide, follow these steps: 1. Measure a specific volume of hydrochloric acid using a pipette. 2. Add a few drops of phenolphthalein indicator. 3. Titrate with sodium hydroxide until the solution turns pink, indicating neutralization. 4. Filter the solution to remove any unreacted sodium hydroxide. 5. Evaporate the filtrate to obtain sodium chloride crystals.

  1. a

    State Identify the independent variable in this method.

    [1]