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Unformatted text preview: until the solution turns red and record this reading on the burette. 4. Carefully add this volume of fresh hydrochloric acid to another 25 cm 3 of sodium hydroxide solution to produce a neutral solution. 5. Reduce to about half the volume using an evaporating dish on a gauze over a Bunsen burner flame. 6. Leave to evaporate in a crystallizing dish to produce a white crystalline solid. Safety Wear eye protection. Questions 1. What is the everyday name for sodium chloride? 2. This reaction is a specific example of the general reaction: Acid + alkali → salt + water. Write a word equation for this specific reaction. 3. Write a formula equation for this reaction. 4. Why must you use another 25 cm 3 of sodium hydroxide solution to make pure sodium chloride? Home...
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- Winter '08
- Sodium chloride, Sodium hydroxide, sodium hydroxide solution