- React calcium carbonate with dilute nitric acid or hydrochloric acid.
- Filter the mixture.
- Add a soluble sulphate to the filtrate.
- Filter the mixture and obtain the residue which is calcium sulphate.
- Wash the residue with distilled water and dry between filter paper.
eddynightsy answered the question on May 2, 2018 at 08:13
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A form four student accidentally mixed sodium carbonate and calcium carbonate. Describe how he would obtain a dry sample of sodium carbonate from the mixture.
(Solved)
A form four student accidentally mixed sodium carbonate and calcium carbonate. Describe how he would obtain a dry sample of sodium carbonate from the mixture.
Date posted:
May 2, 2018
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Answers (1)
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Explain how one would obtain pure sample of potassium carbonate crystals from a mixture of potassium carbonate and calcium carbonate.
(Solved)
Explain how one would obtain pure sample of potassium carbonate crystals from a mixture of potassium carbonate and calcium carbonate.
Date posted:
May 1, 2018
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Describe how a sample of magnesium carbonate can be prepared using the following agents.
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(Solved)
Describe how a sample of magnesium carbonate can be prepared using the following agents.
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Date posted:
May 1, 2018
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Answers (1)
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Describe how a solid sample of lead (II) sulphate would be prepared using the following reagents.
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. dilute...
(Solved)
Describe how a solid sample of lead (II) sulphate would be prepared using the following reagents.
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Date posted:
May 1, 2018
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Answers (1)
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A sample of copper turning was found to be contaminated with copper ii oxide.describe how copper metal can be separated from the mixture
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May 1, 2018
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Date posted:
May 1, 2018
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Suggest a reason why BaSO4(a pigment made from sulphuric acid) would be
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Date posted:
April 29, 2018
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Nitric v acid is manufactured by catalytic oxidation of ammonia gas (a) Name two raw materials other than ammonia that are used to manufacture the acid.....
(Solved)
Nitric v acid is manufactured by catalytic oxidation of ammonia gas
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Date posted:
April 24, 2018
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(Solved)
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Date posted:
April 23, 2018
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Substance Q has a melting point of 15°C and boiling point of 70°c.
(a)On the same axis,draw the melting point and boiling point graph for Q...
(Solved)
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Date posted:
April 22, 2018
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Explain why ammonium trioxocarbonate (iv) leaves no residue when heated
Date posted:
April 22, 2018
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Answers (1)
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Write chemical equation for reaction between dry hydrogen gas and heated lead (ii) oxide
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Write chemical equation for reaction between dry hydrogen gas and heated lead (ii) oxide.
Date posted:
April 21, 2018
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Given the following reagents describe how to prepare lead (ii) sulphate, Solid potassium sulphate, solid lead (ii) carbonate, dilute nitric (iv) acid and distilled water.
(Solved)
Given the following reagents describe how to prepare lead (ii) sulphate: Solid potassium sulphate, solid lead (ii) carbonate, dilute nitric (iv) acid and distilled water.
Date posted:
April 19, 2018
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Answers (1)
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What are the advantages of universal indicators over other acid-base indicators?
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April 19, 2018
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A crystal of copper (II) sulphate was placed in a beaker of water. The beaker was left standing for two days without shaking. State and...
(Solved)
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Date posted:
April 17, 2018
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Explain how the hotness of a bunsen burner flame can be increased.
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April 17, 2018
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April 17, 2018
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(Solved)
Dry ammonia gas is passed over heated lead(II) oxide in a combustion tube.
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Date posted:
April 17, 2018
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(Solved)
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Date posted:
April 14, 2018
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Answers (1)
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Calculate the number of moles of molecules in 7.30g of HCL
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Calculate the number of moles of molecules in 7.30g of HCL
Date posted:
April 12, 2018
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Answers (1)