Concentrated H2SO4 is added to sugar that forms carbon, steam, and sulfur dioxide. The concentrated H2SO4 is added for dehydration of the sugar to obtain carbon and water.
Concentrated H2SO4 is added to sugar that forms carbon, steam, and sulfur dioxide. The concentrated H2SO4 is added for dehydration of the sugar to obtain carbon and water.
Concentrated sulphuric acid is a very good dehydrating agent
Hence it removes all the hydrogen atoms and oxygen atoms in the ratio of 2:1 respectively. Hence glucose which is made up of hydrogen,oxygen and carbon gets charred leaving only carbon.
Concentrated sulphuric acid is a very good dehydrating agent
Hence it removes all the hydrogen atoms and oxygen atoms in the ratio of 2:1 respectively. Hence glucose which is made up of hydrogen,oxygen and carbon gets charred leaving only carbon.
These are esterification conditions (carboxylic acid, alcohol, acid). With malic acid you will get the diester, as shown below.
These are esterification conditions (carboxylic acid, alcohol, acid). With malic acid you will get the diester, as shown below.
More
VOTE
It is the dehydration reaction. When you get rid of the water from carbohydrate, which is glucose, all that left is carbon!
It is the dehydration reaction. When you get rid of the water from carbohydrate, which is glucose, all that left is carbon!
More
VOTE
Sulphur will not react with aqueous sulphuric acid.
It will react with concentrated sulphuric acid, particularly at high temperatures, when water and sulphur dioxide are produced.
Sulphur will not react with aqueous sulphuric acid.
It will react with concentrated sulphuric acid, particularly at high temperatures, when water and sulphur dioxide are produced.
More
VOTE
When SO3 is directly added to water the reaction to form sulfuric acid is extremely exothermic and unsafe on an industrial scale.
If you add the SO3 to conc sulfuric acid then dilute it is less exothermic and safer:
H2SO4 + SO3 → H2S2O7
H2S2O7 + H2O → 2H2SO4
Note you get the original H2SO4 back and one more.
When SO3 is directly added to water the reaction to form sulfuric acid is extremely exothermic and unsafe on an industrial scale.
If you add the SO3 to conc sulfuric acid then dilute it is less exothermic and safer:
H2SO4 + SO3 → H2S2O7
H2S2O7 + H2O → 2H2SO4
Note you get the original H2SO4 back and one more.
More
VOTE
Concentrated H2SO4 is added to sugar that forms carbon, steam, and sulfur dioxide. The concentrated H2SO4 is added for dehydration of the sugar to obtain carbon and water.
Concentrated H2SO4 is added to sugar that forms carbon, steam, and sulfur dioxide. The concentrated H2SO4 is added for dehydration of the sugar to obtain carbon and water.
More
VOTE
Concentrated sulphuric acid is a very good dehydrating agent
Hence it removes all the hydrogen atoms and oxygen atoms in the ratio of 2:1 respectively. Hence glucose which is made up of hydrogen,oxygen and carbon gets charred leaving only carbon.
Concentrated sulphuric acid is a very good dehydrating agent
Hence it removes all the hydrogen atoms and oxygen atoms in the ratio of 2:1 respectively. Hence glucose which is made up of hydrogen,oxygen and carbon gets charred leaving only carbon.
More
VOTE
when ammonium bromide is treated with the concentrated sulphuric acid it gives ammonium sulphate and hydrogen bromide.
when ammonium bromide is treated with the concentrated sulphuric acid it gives ammonium sulphate and hydrogen bromide.
More
VOTE