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Describe the chemical process of preparing nitrogen using Removal from liquid air method.
(Solved)
Describe the chemical process of preparing nitrogen using Removal from liquid air method.
Date posted:
April 27, 2019
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Answers (1)
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By use of a diagram illustrate Fractional distillation of liquid air.
(Solved)
By use of a diagram illustrate Fractional distillation of liquid air.
Date posted:
April 27, 2019
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Answers (1)
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Describe the procedure for Preparation of nitrogen using isolation from air method.
(Solved)
Describe the procedure for Preparation of nitrogen using isolation from air method.
Date posted:
April 26, 2019
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Answers (1)
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Name the process where propane gas molecules are converted to a giant molecule
(Solved)
Name the process where propane gas molecules are converted to a giant molecule.
Date posted:
April 25, 2019
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Answers (1)
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Gas K diffuses through a porous material at a rate of 12cm^3/s whereas S diffuses through the same material at rate of 75cm^3/s. Given that the...
(Solved)
Gas K diffuses through a porous material at a rate of 12cm^3/s whereas S diffuses through the same material at rate of 75cm^3/s. Given that the molecular mass of k is 16 calculate the molar mass of s
Date posted:
April 17, 2019
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Answers (1)
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When excess carbon dioxide is passed over lead oxide in a combustion tube, lead (II) oxide is reduced.
(a)Write an equation for the reaction which took...
(Solved)
When excess carbon dioxide is passed over lead oxide in a combustion tube, lead (II) oxide is reduced.
(a)Write an equation for the reaction which took place
(b)What observations was made in the combustion tube when the reaction was complete
(c)Name another gas which would be used to reduce lead (II) oxide
Date posted:
April 16, 2019
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Answers (1)
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Describe tests for common cations in the laboratory.
(Solved)
Describe tests for common cations in the laboratory.
Date posted:
April 12, 2019
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Answers (1)
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Give the procedure,observation and conclusions for testing for the common anions in the laboratory.
(Solved)
Give the procedure,observation and conclusions for testing for the common anions in the laboratory.
Date posted:
April 12, 2019
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Answers (1)
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Give the procedure,observation and conclusions for testing of common gases in the laboratory.
(Solved)
Give the procedure,observation and conclusions for testing of common gases in the laboratory.
Date posted:
April 12, 2019
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Answers (1)
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Discuss the Fehling's test for reducing sugars.
(Solved)
Discuss the Fehling's test for reducing sugars.
Date posted:
April 12, 2019
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Answers (1)
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Describe the electrolysis of lead bromide.
(Solved)
Describe the electrolysis of lead bromide.
Date posted:
April 12, 2019
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Answers (1)
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Describe an experiment to estimate the size of an oil molecule.
(Solved)
Describe an experiment to estimate the size of an oil molecule.
Date posted:
April 12, 2019
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Answers (1)
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Describe how Oxygen gas is prepared,collected and tested in the laboratory.
(Solved)
Describe how Oxygen gas is prepared,collected and tested in the laboratory.
Date posted:
April 12, 2019
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Answers (1)
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Using a solid naphthalene as an example,describe how impurities affects the melting point of a substance.
(Solved)
Using a solid naphthalene as an example,describe how impurities affects the melting point of a substance.
Date posted:
April 12, 2019
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Answers (1)
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Explain how a burette is used.
(Solved)
Explain how a burette is used.
Date posted:
April 12, 2019
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Answers (1)
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Draw and name the apparatus used in the laboratory.
(Solved)
Draw and name the apparatus used in the laboratory.
Date posted:
April 12, 2019
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Answers (1)
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Describe an experiment to demonstrate the purity of water using boiling point.
(Solved)
Describe an experiment to demonstrate the purity of water using boiling point.
Date posted:
April 11, 2019
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Answers (1)
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State three examples of allotropes of carbon
(Solved)
State three examples of allotropes of carbon.
Date posted:
April 9, 2019
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Answers (1)
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Define the following terms as used in chemistry: atom,molecule, element and compound
(Solved)
Define the following terms as used in chemistry: atom,molecule, element and compound
Date posted:
April 9, 2019
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Answers (1)
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Describe how the mixture of sugar, iodine and lead (II) carbonate can be separated
(Solved)
Describe how the mixture of sugar, iodine and lead (II) carbonate can be separated.
Date posted:
April 9, 2019
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Answers (1)