The method you use depends on whether your salt dissolves in water. Most salts are soluble, but some are insoluble and need a different approach.
| Soluble Salts | Insoluble Salts |
|---|---|
|
Made by reacting acid with:
Examples: copper sulfate, zinc chloride, sodium nitrate |
Made by precipitation:
Examples: barium sulfate, lead iodide, silver chloride |
This deep dive covers Deep Dive: Choosing the Right Method within Making Salts for GCSE Chemistry. Revise Making Salts in Chemical Changes for GCSE Chemistry with 20 exam-style questions and 20 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 3 of 13 in this topic. Use this deep dive to connect the idea to the wider topic before moving on to questions and flashcards.
Practice questions for Making Salts
Which of the following is the correct method for making copper sulfate crystals from copper oxide and sulfuric acid?
Describe the steps involved in the required practical for preparing a pure, dry sample of copper sulfate crystals from copper oxide and dilute sulfuric acid.