Methods of Identifying Ions (OCR GCSE Chemistry A (Gateway Science Suite)): Flashcards

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Carbonates
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How are carbonate ions identified?

Reaction with dilute acids

Gas produced when \ceCO32−\ce{CO3^{2-}} reacts with dilute acid

Carbon dioxide (\ceCO2\ce{CO2})

First step to test for carbonate ions in a solution

Add dilute hydrochloric acid

Where to bubble gas when testing for \ceCO32−\ce{CO3^{2-}}

Through lime water

Positive test result for \ceCO2\ce{CO2} in lime water

Lime water turns cloudy

What cloudy lime water indicates in carbonate test

Presence of carbonate ions

Chemical formula of lime water

\ceCa(OH)2\ce{Ca(OH)2}

Which acid is used to test for carbonate ions?

Dilute hydrochloric acid

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Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

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Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

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Purity, Formulations & Chromatography

Identification of Common Gases

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Purity, Formulations & Chromatography

Identification of Common Gases

Methods of Identifying Ions

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