Sulfates Flashcards

All 3 cards in this deck

What are the steps to test a solution for sulfate ions?
e.g. testing potassium sulfate solution

1. Add dilute hydrochloric acid.
2. Add barium chloride solution.
3. A white precipitate forms — sulfate ions are present.

Which white precipitate forms in a positive test for sulfate ions?

Barium sulfate.

True or false? Dilute sulfuric acid can be used to acidify a solution before adding barium chloride in the test for sulfate ions.

False. Sulfuric acid contains sulfate ions; dilute hydrochloric acid is used.