I think, it acts as a dehydrating agent because it has a great affinity for water...and in my opinion the reason behind it's great affinity is that water decomposes the acid...
Concentrated sulphuric acid and Concentrated Phosporic acid are good dehydrating agents.It removes water from alcohols to convert it into corresponding alkenes.
It speeds up the reaction, and acts as a dehydrating agent
Because the esterification process is reversible, and we need the reaction to be one-way, the addition of sulphuric acid as a dehydrating agent stops the water from reacting with the ester to form back into an acid and alcohol. The sulphuric acid also acts as a catalyst for the reaction by protonating the carbonyl group oxygen, thus making the carbonyl group more electrophilic
No. Even concentrated hydrochloric acid contains much water. Concentrated sulfuric acid, which can be completely anhydrous, is much more effective as dehydrating agent.
Sulfuric acid's primary hazard is that it is not only corrosive, but it is also a dehydrating acid. Just like phosphoric acid, sulfuric acid is so dehydrating that it would suck the water right out from your skin and cells on contact, and it could also result in a thermal burn.
Concentrated sulphuric acid and Concentrated Phosporic acid are good dehydrating agents.It removes water from alcohols to convert it into corresponding alkenes.
It speeds up the reaction, and acts as a dehydrating agent
Because the esterification process is reversible, and we need the reaction to be one-way, the addition of sulphuric acid as a dehydrating agent stops the water from reacting with the ester to form back into an acid and alcohol. The sulphuric acid also acts as a catalyst for the reaction by protonating the carbonyl group oxygen, thus making the carbonyl group more electrophilic
No. Even concentrated hydrochloric acid contains much water. Concentrated sulfuric acid, which can be completely anhydrous, is much more effective as dehydrating agent.
Sulfuric acid's primary hazard is that it is not only corrosive, but it is also a dehydrating acid. Just like phosphoric acid, sulfuric acid is so dehydrating that it would suck the water right out from your skin and cells on contact, and it could also result in a thermal burn.
it can act as a catalyst, an acid, a dehydrating agent
Acts as the dehydrating agent (catalyst).
dangerous to living organisms
They are both dangerous. But if I had to choose, I would say nitric acid. Even if sulfuric acid could cause thermal burns along with chemical burns due to its dehydrating properties, it is nowhere as toxic as nitric acid.
Yes. Add concentrated sulfuric acid which is a dehydrating agent. It will form a black foamy mass. Rinse with water and filter and rinse again. Dry in an oven and carbon will be left.
In some cases, it could be used but not always. For example, if an acid is required only for its H+, then it could be used but if you require a very strong oxidizing agent then you should use Nitric acid and if you require a dehydrating agent, then sulphuric acid would come in use.
The sugar units have H and OH attached to carbon atoms and sulphuric acid is a strong dehydrating agent (water remover) so it eliminates water from sugar units leaving the pure carbon , as C6H12O6 = 6C +6H2O