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Year 9 Making salts by precipitation (5 drag and drop)
By Phoenix Hoyle
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Last updated about 4 hours ago
9 questions
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Question 1
1.
Sodium chloride (NaCl)
____________ (All common sodium salts are soluble.)
Potassium nitrate (KNO₃)
____________ (All nitrates are soluble.)
Ammonium sulfate (NHâ‚„)â‚‚SOâ‚„
____________ (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 PbSOâ‚„
______________
Lead sulfate is an exception to the rule that most common sulfates are soluble.
Other Answer Choices:
drag_indicator
Insoluble
drag_indicator
Soluble
Question 2
2.
Calcium carbonate CaCO₃
______________ (Most common carbonates are insoluble.)
Calcium hydroxide Ca(OH)â‚‚
______________ (Most common hydroxides are insoluble.)
Potassium carbonate K₂CO₃
____________ (Sodium carbonate, potassium carbonate, and ammonium carbonate are soluble).
Ammonium hydroxide NHâ‚„OH
____________ (Sodium hydroxide, potassium hydroxide, and ammonium hydroxide are soluble).
Sodium sulfate Naâ‚‚SOâ‚„
____________
All common sodium salts are soluble.
Other Answer Choices:
drag_indicator
Insoluble
drag_indicator
Soluble
Question 3
3.
Add the state symbols to the following formulae.
(
_______
)
indicates aqueous (dissolved in water)
(
______
)
indicates solid (precipitate)
1. Lead Sulfate (PbSOâ‚„)
Reactants:
Lead(II) nitrate (Pb(NO₃)₂) and potassium sulfate (K₂SO₄)
Pb(NO₃)₂(_______ ) + K₂SO₄_______ → PbSO₄(______ ) + 2KNO₃(_______ )
Other Answer Choices:
drag_indicator
aq
drag_indicator
s
Question 4
4.
Add the state symbols to the following formulae.
(
_______
)
indicates aqueous (dissolved in water)
(
______
)
indicates solid (precipitate)
2. Barium Sulfate (BaSOâ‚„)
Reactants:
Barium nitrate (Ba(NO₃)₂) and potassium sulfate (K₂SO₄)
Ba(NO₃)₂(aq) + K₂SO₄(aq) → BaSO₄(______ ) + 2KNO₃(_______ )
3. Calcium Sulfate (CaSOâ‚„)
Reactants:
Calcium nitrate (Ca(NO₃)₂) and potassium sulfate (K₂SO₄)
Ca(NO₃)₂(aq) + K₂SO₄(aq) → CaSO₄(______ ) + 2KNO₃(_______ )
Other Answer Choices:
drag_indicator
s
drag_indicator
aq
Question 5
5.
Question 6
6.
Click the correct column For compounds 1-5
Question 7
7.
Click the correct column for compounds 6-10
Question 8
8.
Other Answer Choices:
drag_indicator
drag_indicator
drag_indicator
drag_indicator
filter
drag_indicator
drag_indicator
Question 9
9.
Procedure for Preparing Insoluble Salts via Precipitation:
https://www.focuselearning.co.uk/s/1q44l3wsl0zo
_______
the soluble reactants:
Dissolve each of the chosen soluble salts in separate beakers of distilled water.
_______ the solutions
:
Carefully pour one solution into the other, stirring continuously. The insoluble salt will form as a _______ .
Separate the precipitate by
_______
:
Use filtration to separate the solid precipitate from the remaining solution (filtrate).
_______
the precipitate:
Wash the precipitate with distilled water to remove any remaining soluble ions.
_______
the precipitate:
Dry the precipitate by leaving it to air dry, or pressing it between _______ papers.
Give the steps in order to make a salt by precipitation
https://www.focuselearning.co.uk/s/1q44l3wsl0zo
b) filter the mixture
c) collect the residue (in the filter paper)
a) add the solutions of the two soluble salts together
d) wash the salt with a minimum volume of distilled water
e) dry the salt (leave in a warm dry place or press between dry filter paper)
f) scrape the pure dry salt into the sample bottle.
Procedure for Preparing Insoluble Salts via Precipitation:
https://www.focuselearning.co.uk/s/1q44l3wsl0zo
_____________
the soluble reactants:
Dissolve each of the chosen soluble salts in separate beakers of distilled water.
______________________
:
Carefully pour one solution into the other, stirring continuously. The insoluble salt will form as a precipitate.
Separate the precipitate by
_______________
:
Use filtration to separate the solid precipitate from the remaining solution (filtrate).
_________
the precipitate:
Wash the precipitate with distilled water to remove any remaining soluble ions.
________
the precipitate:
Dry the precipitate by leaving it to air dry, or pressing between ___________ papers.
Now copy this into your books.
Wash
filtration
Dissolve
Mix the solutions
Dry
