Fractional distillation is a separation technique where where chemical compounds are separated by heating them to a temperature at which one or more fractions vaporizes based on their differences in their boiling points; whereas crystallization is a method of refining substances by separating them based on their differences in their solubility in certain solvents.This is achieved by mixing the compound with a solvent,heating it and cooling it gradually so that each of its constituent components forms crystals that can be removed from the solution.
Chemist2018 answered the question on June 28, 2018 at 12:46
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What is the difference of alkali and alkaline?
(Solved)
What is the difference of alkali and alkaline?
Date posted:
June 22, 2018
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Factors influencing size of ionisation energy of an element
(Solved)
Factors influencing size of ionisation energy of an element
Date posted:
June 21, 2018
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What is lampblack?
(Solved)
What is lampblack?
Date posted:
June 20, 2018
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What mass of sodium hydroxide would be needed to neutralize exactly 200 cubic centimetre of a solution containing 49 grammes of sulphuric acid in dm-3
(Solved)
What mass of sodium hydroxide would be neededto neutralize exactly 200 cubic centimetre of a solution containing 49 grammes of sulphuric acid in dm^-3
Date posted:
June 18, 2018
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Describe Werner's coordination theory and give his main proposals
(Solved)
Describe Werner's coordination theory and give his main proposals.
Date posted:
May 22, 2018
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Explain Pearson's rule and Jorgen's rule as used in coordination chemistry
(Solved)
Explain Pearson's rule and Jorgen's rule as used in coordination chemistry.
Date posted:
May 20, 2018
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Answers (1)
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(Solved)
Organometallics
Date posted:
May 20, 2018
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(Solved)
Differentiate between the terms isomers and polymers.
Date posted:
May 20, 2018
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(Solved)
State the assumptions of capture recapture method of population size estimation.
Date posted:
May 19, 2018
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Answers (1)
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Explain why sodium hydroxide is preferred when making a setup to investigate the active part of air using a burning candle
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Explain why sodium hydroxide is preferred when making a setup to investigate the active part of air using a burning candle.
Date posted:
May 14, 2018
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The Haber process largely relies on catalysts. Give reason for this.
(Solved)
The Haber process largely relies on catalysts. Give reason for this.
Date posted:
May 12, 2018
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Name the industrial process by which ammonia gas is produced
(Solved)
Name the industrial process by which ammonia gas is produced.
Date posted:
May 10, 2018
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(Solved)
Name the three oxides of nitrogen.
Date posted:
May 10, 2018
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State the properties of nitrogen(I)oxide gas
(Solved)
State the properties of nitrogen(I)oxide gas
Date posted:
May 10, 2018
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Answers (1)
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Describe the process of obtaining nitrogen gas from air by fractional distillation of liquid air
(Solved)
Describe the process of obtaining nitrogen gas from air by fractional distillation of liquid air.
Date posted:
May 10, 2018
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Answers (1)
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Using chemical equations, describe the process of producing nitric acid.
(Solved)
Using chemical equations, describe the process of producing nitric acid.
Date posted:
May 5, 2018
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(Solved)
What is Ostwald process?
Date posted:
May 5, 2018
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(Solved)
What is the major source of hydrogen in the Haber process?
Date posted:
May 5, 2018
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(Solved)
State the required conditions in the Haber process.
Date posted:
May 5, 2018
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Name the major raw materials in the Haber Process.
(Solved)
Name the major raw materials in the Haber Process.
Date posted:
May 5, 2018
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Answers (1)