Question detail
Describe the process of preparing a soluble salt from an acid and an insoluble reactant.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Reactions of acids
Question
Describe the process of preparing a soluble salt from an acid and an insoluble reactant.
Answer
To prepare a soluble salt, an insoluble reactant, such as a metal oxide or carbonate, is added to an acid until no more reacts. The mixture is then filtered to remove any excess insoluble material, and the resulting solution is evaporated to crystallize the soluble salt.
Explanation
This answer demonstrates understanding of the practical steps involved in salt preparation, testing knowledge of the reaction between acids and insoluble substances. It assesses the student's ability to describe a chemical process clearly.
Common mistake
Common Mistake in Preparing Soluble Salts
Students often forget to add the insoluble solid in excess when preparing a soluble salt, leading to incomplete reaction.
Always add the insoluble solid in excess to ensure that all the acid reacts and to prevent any unreacted acid from remaining in the solution.
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