Chemistry-Test For Cations & Anions

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Description and Tags

Chemistry

Acids and Bases

IGCSE Chemistry

CIE

Experimental techniques and chemical analysis

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<p>Anions</p>

Anions

Negatively Charged ions - Can be tested As:

  • Carbonate

  • Halides

  • Nitrate

  • Sulphate

  • Sulfite

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Carbonates Test

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Halides Test

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Nitrates Test

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Sulfate Test

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Sulfite Test

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<p>Cations</p>

Cations

Positively Charged ions - Include:

  • Ammonium Ions

  • Metal Ions with sodium Hydroxide or Ammonia

<p>Positively Charged ions - Include:</p><ul><li><p>Ammonium Ions</p></li><li><p>Metal Ions with sodium Hydroxide or Ammonia </p></li></ul><p></p>
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Other Cations

Include

  • Aluminum

  • Calcium

  • Zinc

  • Copper

  • Chromium (III)

  • Fe (II)

  • Fe (III)

<p>Include </p><ul><li><p>Aluminum</p></li><li><p>Calcium </p></li><li><p>Zinc</p></li><li><p>Copper</p></li><li><p>Chromium (III)</p></li><li><p>Fe (II)</p></li><li><p>Fe (III)</p></li></ul><p></p>
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<p>Test for Gases</p>

Test for Gases

  • Hydrogen

  • Oxygen

  • Sulfur

  • Ammonia

  • Carbon dioxide

  • Chlorine

<ul><li><p>Hydrogen</p></li><li><p>Oxygen</p></li><li><p>Sulfur </p></li><li><p>Ammonia</p></li><li><p>Carbon dioxide</p></li><li><p>Chlorine</p></li></ul><p></p>
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<p>Flame Test For Metal ions</p>

Flame Test For Metal ions

Steps:

  • use a loop made of unreactive metal (platinum)

  • Clean by dipping it in HCl And heating Until no Color appears

  • Then Dip it into the sample

  • Heat and Observe

Colors:

BLC-PS-C

  • Barium: Light Green

  • Lithium: Red

  • Calcium: Orange-Red

  • Potassium: Lilac

  • Copper: Blue

<p>Steps:</p><ul><li><p>use a loop made of unreactive metal (platinum)</p></li><li><p>Clean by dipping it in HCl And heating Until no Color appears</p></li><li><p>Then Dip it into the sample</p></li><li><p>Heat and Observe</p></li></ul><p>Colors:</p><p><strong>BLC-PS-C</strong></p><ul><li><p>Barium: Light Green</p></li><li><p>Lithium: Red</p></li><li><p>Calcium: Orange-Red</p></li><li><p>Potassium: Lilac</p></li><li><p>Copper: Blue</p></li></ul><p></p>