H2SO4 (l) + SO3 (g) ----> H2S2O7 (l)
Mr Masinde answered the question on May 5, 2018 at 09:36
-
Outline the five major processes of the contact process in the production of sulphuric acid
(Solved)
Outline the five major processes of the contact process in the production of sulphuric acid.
Date posted:
May 5, 2018
.
Answers (1)
-
In the last stage of the solvay process, a mixture of sodium hydrogen carbonate and ammonium chloride is formed. (i.) State the method of separation used.
(Solved)
In the last stage of the solvay process, a mixture of sodium hydrogen carbonate and ammonium chloride is formed.
i.) State the method of separation used.
ii.) Write an equation showing how lime is slaked.
iii.) Name the by-product recycled in the above process.
Date posted:
May 2, 2018
.
Answers (1)
-
Solvay process is used to manufacture sodium carbonate. (a.) Name two raw materials. (b.) How is sodium carbonate obtained from sodium hydrogen carbonate. (c.) Name two main substances...
(Solved)
Solvay process is used to manufacture sodium carbonate.
a.) Name two raw materials.
b.) How is sodium carbonate obtained from sodium hydrogen carbonate.
c.) Name two main substances that are recycled.
Date posted:
May 2, 2018
.
Answers (1)
-
Describe a chemical test that can be used to distinguish between sodium carbonate and sodium hydrogen carbonate.
(Solved)
Describe a chemical test that can be used to distinguish between sodium carbonate and sodium hydrogen carbonate.
Date posted:
May 2, 2018
.
Answers (1)
-
Starting from calcium carbonate, describe how a solid sample of calcium sulphate can be prepared.
(Solved)
Starting from calcium carbonate, describe how a solid sample of calcium sulphate can be prepared.
Date posted:
May 2, 2018
.
Answers (1)
-
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
.
Answers (1)
-
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
.
Answers (1)
-
Describe how a sample of magnesium carbonate can be prepared using the following agents.
-Sodium carbonate
-Magnesium oxide
-Dilute hydrochloric acid
(Solved)
Describe how a sample of magnesium carbonate can be prepared using the following agents.
-Sodium carbonate
-Magnesium oxide
-Dilute hydrochloric acid
Date posted:
May 1, 2018
.
Answers (1)
-
Describe how a solid sample of lead (II) sulphate would be prepared using the following reagents.
. dilute nitric (V) acid
. solid lead (II) carbonate
. dilute...
(Solved)
Describe how a solid sample of lead (II) sulphate would be prepared using the following reagents.
. dilute nitric (V) acid
. solid lead (II) carbonate
. dilute sulphuric (VI) acid
Date posted:
May 1, 2018
.
Answers (1)
-
A sample of copper turning was found to be contaminated with copper ii oxide.describe how copper metal can be separated from the mixture
(Solved)
A sample of copper turning was found to be contaminated with copper ii oxide.describe how copper metal can be separated from the mixture
Date posted:
May 1, 2018
.
Answers (1)
-
A solution of tetrachloromethane burns colourless when propene gas is bubbled through it . What type of reaction takes place?
(Solved)
A solution of tetrachloromethane burns colourless when propene gas is bubbled through it. What type of reaction takes place?
Date posted:
May 1, 2018
.
Answers (1)
-
Suggest a reason why BaSO4(a pigment made from sulphuric acid) would be
suitable in making paint for cars.
(Solved)
Suggest a reason why BaSO4(a pigment made from sulphuric acid) would be
suitable in making paint for cars.
Date posted:
April 29, 2018
.
Answers (1)
-
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
a. Name two raw materials other than ammonia that are used to manufacture the acid
b. Name the catalyst used.
c. Write an equation for reaction between nitric v acid and ammonia gas
d. sate one use of product in c
Date posted:
April 24, 2018
.
Answers (1)
-
A mixture contains iron(III)chloride, zinc(II)oxide and potassium chloride. Describe how each of the substance can be obtained from the mixture
(Solved)
A mixture contains iron(III)chloride,zinc(II)oxide and potassium chloride. Describe how each of the substance can be obtained from the mixture.
Date posted:
April 23, 2018
.
Answers (1)
-
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)
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 and the room temperature.
(b)State the physical state of substance Q at room temperature.
Date posted:
April 22, 2018
.
Answers (1)
-
Explain why ammonium trioxocarbonate (iv) leaves no residue when heated
(Solved)
Explain why ammonium trioxocarbonate (iv) leaves no residue when heated
Date posted:
April 22, 2018
.
Answers (1)
-
Write chemical equation for reaction between dry hydrogen gas and heated lead (ii) oxide
(Solved)
Write chemical equation for reaction between dry hydrogen gas and heated lead (ii) oxide.
Date posted:
April 21, 2018
.
Answers (1)
-
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
.
Answers (1)
-
What are the advantages of universal indicators over other acid-base indicators?
(Solved)
What are the advantages of universal indicators over other acid-base indicators?
Date posted:
April 19, 2018
.
Answers (1)
-
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)
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 explain the observations that were made.
Date posted:
April 17, 2018
.
Answers (1)