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Laabri

Year 9 Making salts by precipitation (5 drag and drop)

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Last updated 20 days ago
9 Nsɛmmisa
5
5
6
6
6
5
10
6
6
Asemmisa {{asɛmmisaAhyɛnsode}}
1.

Sodium chloride (NaCl)

(All common sodium salts are soluble.)

Potassium nitrate (KNO₃)

(All nitrates are soluble.)

Ammonium sulfate (NH₄)₂SO₄

(All common ammonium salts are soluble.)

Silver chloride AgCl

(Silver chloride is an exception to the rule that most common chlorides are soluble).

Lead sulfate PbSO₄

Lead sulfate is an exception to the rule that most common sulfates are soluble.

Mmuae Afoforo a Wobɛpaw:
Insoluble
Soluble
Asemmisa {{asɛmmisaAhyɛnsode}}
2.

Calcium carbonate CaCO₃

(Most common carbonates are insoluble.)

Calcium hydroxide Ca(OH)₂

(Most common hydroxides are insoluble.)

Potassium carbonate K₂CO₃

(Sodium carbonate, potassium carbonate, and ammonium carbonate are soluble).

Ammonium hydroxide NH₄OH

(Sodium hydroxide, potassium hydroxide, and ammonium hydroxide are soluble).

Sodium sulfate Na₂SO₄

All common sodium salts are soluble.

Mmuae Afoforo a Wobɛpaw:
Insoluble
Soluble
Asemmisa {{asɛmmisaAhyɛnsode}}
3.

Add the state symbols to the following formulae.

  • ( ) indicates aqueous (dissolved in water)

  • ( ) indicates solid (precipitate)

1. Lead Sulfate (PbSO₄)

  • Reactants: Lead(II) nitrate (Pb(NO₃)₂) and potassium sulfate (K₂SO₄)

  • Pb(NO₃)₂( ) + K₂SO₄ → PbSO₄( ) + 2KNO₃( )

Mmuae Afoforo a Wobɛpaw:
aq
s
Asemmisa {{asɛmmisaAhyɛnsode}}
4.

Add the state symbols to the following formulae.

  • ( ) indicates aqueous (dissolved in water)

  • ( ) indicates solid (precipitate)

2. Barium Sulfate (BaSO₄)

  • Reactants: Barium nitrate (Ba(NO₃)₂) and potassium sulfate (K₂SO₄)

  • Ba(NO₃)₂(aq) + K₂SO₄(aq) → BaSO₄( ) + 2KNO₃( )

3. Calcium Sulfate (CaSO₄)

  • Reactants: Calcium nitrate (Ca(NO₃)₂) and potassium sulfate (K₂SO₄)

  • Ca(NO₃)₂(aq) + K₂SO₄(aq) → CaSO₄( ) + 2KNO₃( )

Mmuae Afoforo a Wobɛpaw:
s
aq
Asemmisa {{asɛmmisaAhyɛnsode}}
5.

Give the steps in order to make a salt by precipitation

https://www.focuselearning.co.uk/s/1q44l3wsl0zo

  1. b) filter the mixture

  2. f) scrape the pure dry salt into the sample bottle.

  3. e) dry the salt (leave in a warm dry place or press between dry filter paper)

  4. c) collect the residue (in the filter paper)

  5. d) wash the salt with a minimum volume of distilled water

  6. a) add the solutions of the two soluble salts together

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

Click the correct column For compounds 1-5

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

Click the correct column for compounds 6-10

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

Procedure for Preparing Insoluble Salts via Precipitation:

https://www.focuselearning.co.uk/s/1q44l3wsl0zo

  1. the soluble reactants: Dissolve each of the chosen soluble salts in separate beakers of distilled water.

  2. : Carefully pour one solution into the other, stirring continuously. The insoluble salt will form as a precipitate.

  3. Separate the precipitate by : Use filtration to separate the solid precipitate from the remaining solution (filtrate).

  4. the precipitate: Wash the precipitate with distilled water to remove any remaining soluble ions.

  5. the precipitate: Dry the precipitate by leaving it to air dry, or pressing between papers.

Now copy this into your books.

Mmuae Afoforo a Wobɛpaw:

Wash

filtration

Dissolve

filter

Mix the solutions

Dry

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

Procedure for Preparing Insoluble Salts via Precipitation:

https://www.focuselearning.co.uk/s/1q44l3wsl0zo

  1. the soluble reactants: Dissolve each of the chosen soluble salts in separate beakers of distilled water.

  2. the solutions: Carefully pour one solution into the other, stirring continuously. The insoluble salt will form as a .

  3. Separate the precipitate by : Use filtration to separate the solid precipitate from the remaining solution (filtrate).

  4. the precipitate: Wash the precipitate with distilled water to remove any remaining soluble ions.

  5. the precipitate: Dry the precipitate by leaving it to air dry, or pressing it between papers.