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AQA A-Level Chemistry > Reactions of Ions in Aqueous Solution: Colours & Solutions of Products > Flashcards

Reactions of Ions in Aqueous Solution: Colours & Solutions of Products Flashcards

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1
Q

Full table

A
  • https://filestore.aqa.org.uk/resources/chemistry/AQA-7405-REACTIONS-OF-METAL-IONS.PDF
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2
Q

Formula and colour of iron(II) aqueous ion

A
  • [Fe(H2O)6]^2+ (aq)

- Green solution

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3
Q

Formula and colour of copper(II) aqueous ion

A
  • [Cu(H2O)6]^2+ (aq)

- Blue solution

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4
Q

Formula and colour of iron(III) aqueous ion

A
  • [Fe(H2O)6]^3+ (aq)
  • Purple solution
  • May look yellow-brown due to some [Fe(H2O)5(OH)]^2+(aq)
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5
Q

Formula and colour of aluminium(III) aqueous ion

A
  • [Al(H2O)6]^3+ (aq)

- Colourless solution

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6
Q

Formula and colour of iron(II), copper(II), iron(III) and aluminium(III) aqueous ions

A

• Iron(II)

  • [Fe(H2O)6]^2+(aq)
  • Green solution

• Copper(II)

  • [Cu(H2O)6]^2+(aq)
  • Blue solution

• Iron(III)

  • [Fe(H2O)6]3+(aq)
  • Purple solution
  • May look yellow-brown due to some [Fe(H2O)5(OH)]2+(aq)

• Aluminium(III)

  • [Al(H2O)6]3+(aq)
  • Colourless solution
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7
Q

Formula and colour of product after reaction of iron(II) with NaOH and excess NaOH

A

• Action of NaOH

  • Fe(H2O)4(OH)2(s)
  • Green ppt goes brown on standing in air

• Action of excess of NaOH
- No further change

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8
Q

Formula and colour of product after copper(II) reacts with NaOH and excess NaOH

A

• Action of NaOH

  • Cu(H2O)4(OH)2(s)
  • Blue ppt

• Action of excess NaOH (aq)
- No further change

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9
Q

Formula and colour of product after iron(III) reacts with NaOH and excess NaOH

A

• Action of NaOH

  • Fe(H2O)3(OH)3(s)
  • Brown ppt (ppt may look orange-brown)

• Action of excess NaOH(aq)
- No further change

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10
Q

Formula and colour of product after aluminium(III) reacts with NaOH and excess NaOH

A

• Action of NaOH

  • Al(H2O)3(OH)3(s)
  • White ppt

• Action of excess NaOH (aq)

  • [Al(OH)4]–(aq)
  • Colourless solution
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11
Q

Formulae and colours of products after iron(II), copper(II), iron(III) and aluminium(III) react with NaOH and excess NaOH

A

https://filestore.aqa.org.uk/resources/chemistry/AQA-7405-REACTIONS-OF-METAL-IONS.PDF

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12
Q

Formula and colour of product after iron(II) reacts with NH3 and excess NH3

A

• Action of NH3 (aq)

  • Fe(H2O)4(OH)2(s)
  • Green ppt goes brown on standing in air

• Action of excess NH3 (aq)
- No further change

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13
Q

Formula and colour of product after copper(II) reacts with NH3 and excess NH3

A

• Action of NH3 (aq)

  • Cu(H2O)4(OH)2(s)
  • Blue ppt

• Action of excess NH3 (aq)

  • [Cu(H2O)2(NH3)4]^2+(aq)
  • Deep blue solution
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14
Q

Formula and colour of product after iron(III) reacts with NH3 and excess NH3

A

• Action of NH3 (aq)

  • Fe(H2O)3(OH)3(s)
  • Brown ppt (ppt may look orange- brown)

• Action of excess of NH3 (aq)
- No further change

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15
Q

Formula and colour of product after aluminium(III) reacts with NH3 and excess NH3

A

• Action of NH3 (aq)

  • Al(H2O)3(OH)3(s)
  • White ppt

• Action of excess NH3 (aq)
- No further change

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16
Q

Formulae and colour of products after iron(II), copper(II), iron(III) and aluminium(III) react with NH3 and excess NH3

A

https://filestore.aqa.org.uk/resources/chemistry/AQA-7405-REACTIONS-OF-METAL-IONS.PDF

17
Q

Formula and colour of product after iron(II) reacts with Na2CO3 (aq)

A
  • FeCO3 (s)

- Green ppt

18
Q

Formula and colour of product after copper(II) reacts with Na2CO3 (aq)

A
  • CuCO3 (s)

- Blue-green ppt

19
Q

Formula and colour of product after iron(III) reacts with Na2CO3 (aq)

A
  • Fe(H2O)3(OH)3(s)

- Brown ppt (ppt may look orange-brown) and CO2 gas

20
Q

Formula and colour of product after aluminium(III) reacts with Na2CO3 (aq)

A
  • Al(H2O)3(OH)3(s)

- White ppt and CO2 gas evolved

21
Q

Formula and colour of products after iron(II), copper(II), iron(III) and aluminium(III) react with Na2CO3 (aq)

A

https://filestore.aqa.org.uk/resources/chemistry/AQA-7405-REACTIONS-OF-METAL-IONS.PDF

AQA A-Level Chemistry (113 decks)

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