Testing for Substances

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Author:
Hebe
ID:
302480
Filename:
Testing for Substances
Updated:
2015-05-13 18:53:46
Tags:
Flame Tests Chemistry Postitive Ion Negative Carbonates Halides Sulphates
Folders:
Science,Chemistry
Description:
Flash cards for flame tests
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  1. Testing Positive Ions: What colour flame is Lithium (Li+)?
    •  Crimson Red 
    • (Lithium is Lipstick Red)
  2. Testing Positive Ions: What colour flame is Sodium (Na+)?
    Sunny Yellow!
  3. Testing Positive Ions: What colour flame is Potassium (K+)?
    Pretty Potassium is Purple ⇨ Lilac
  4. Testing Positive Ions: What colour flame is Calcium (Ca2+)?
    Brick Red
  5. Testing Positive Ions: What colour flame is Barium (Ba2+)?
    Barium is Bottle Green
  6. Testing Positive Ions - Precipitate Reactions. What happens when Iron(II) is added to sodium hydroxide?
    There is a Dark Green Precipitate 
  7. Testing Positive Ions - Precipitate Reactions. What happens when Iron(III) is added to sodium hydroxide?
    There is a Brown Precipitate - rust
  8. Testing Positive Ions - Precipitate Reactions. What happens when Copper(II) is added to sodium hydroxide?
    • There is a Blue Precipitate
    •  
    • The Copper is BLUE!
  9. Testing Positive Ions - Precipitate Reactions. What happens when Aluminium is added to Sodium Hydroxide?
    There is a White Precipitate 
  10. Testing Positive Ions - Precipitate Reactions. What happens when Calcium is added to sodium hydroxide?
    There is a White Precipitate 
  11. Testing Positive Ions - Precipitate Reactions. What happens when Magnesium is added to sodium hydroxide?
    There is a White Precipitate 
  12. Testing Positive Ions - Precipitate Reactions. Which ion's white precipitate dissolves when excess sodium hydroxide is added?
    • Aluminium 
    • Calcium
    • Magnesium
  13. Testing Negative Ions - Carbonates.
    How do you test for Carbonate Ions?
    Add dilute hydrochloric acid to see if it fizzes.

    • If the gas produced turns limewater milky it contains Carbonate Ions.
    • A lit splint will go out
  14. Testing Negative Ions - Halides.
    How do you test for Halides?
    • Add dilute nitric acid (to remove any carbonates) AND then silver nitrate solution.
    • If a precipitate is formed then there is a halide present.
    • Check the colour
  15. Testing Negative Ions - Halides.
    Which halide ions give a white precipitate?
    Chloride Ions
  16. Testing Negative Ions - Halides.Which halide ions give a cream precipitate? 
    Bromide Ions
  17. Testing Negative Ions - Halides.Which halide ions give a yellow precipitate?
    Iodide Ions
  18. Testing Negative Ions - Sulphates. 
    How do you test for Sulphates?
    • Add dilute hydrochloric acid (to remove any carbonates) AND then add Barium Chloride.
    • If a white precipitate formssulphate ions are present.

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