Identifying Ions: Sulfates 🧪 GCSE Chemistry Learning & Revision

from REVISE GCSE Chemistry - A podcast by Seneca Learning · host Seneca Learning

This episode details a two-step chemical test used to identify the presence of sulfate ions in a solution. First, dilute hydrochloric acid is added to eliminate any interfering carbonate ions. Next, barium chloride is introduced to the solution. If sulfate ions are present, they will react with the barium ions to form a characteristic white precipitate of barium sulfate. This visible reaction confirms the existence of sulfates in the original sample.Don't miss out on subscribing for more educational content tailored to help you succeed in your exams. Perfect for AQA, OCR, Edexcel, CIE and WJEC exam boards.⁠Click here to see all of our GCSE Chemistry content!

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This episode is 5 minutes long.

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This episode was published on July 1, 2025.

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