Table of Contents
- 1 Which drying agent Cannot be used for drying the gas?
- 2 Why is phosphorus pentoxide used as a drying agent?
- 3 Why is calcium oxide and phosphorus pentoxide not used as drying agent?
- 4 Which drying agent is not preferred to dry hydrogen?
- 5 Can calcium oxide and phosphorus pentoxide be used to dry HCl gas?
- 6 What is the difference between anhydrous Koh and calcium sulfate?
Which drying agent Cannot be used for drying the gas?
phosphorus pentoxide and calcium oxide are good drying agent but they cannot be used to dry hydrogen chloride gas.
Why can calcium oxide not be used as drying agent?
Answer : Calcium oxide (CaO) is used as drying agent while preparing ammonia but concentrated sulphuric acid cannot be used as drying agent because sulphuric acid is an acid and ammonia is basic they will react to form a salt (Ammonium sulphate).
Why is phosphorus pentoxide used as a drying agent?
Phosphorus pentoxide is a powerful desiccant suitable for drying neutral and acid gases, saturated alipathic and aromatic hydrocarbons, nitriles, alkyl and acryl halogenides, and carbon disulfide. It can hence be easily removed after the drying process.
Why calcium Cannot be used to dry hydrogen chloride?
If quicklime is used to dry HCl gas, it will start to react with HCl. Since HCl behaves as an acid and CaO behaves like a base, a neutralization reaction takes place in between them. They form water and calcium chloride salt. Hence, CaO can never be used to dry HCl gas.
Why is calcium oxide and phosphorus pentoxide not used as drying agent?
Phosphorous pentoxide and CaO cannot be used to dry HCl because they react with HCl.
Why calcium oxide is generally used for drying of gases?
Answer: CaCl2 reacts with ammonia to produce an additive compound. Thus it is desirable to use a basic drying agent like quick lime(CaO) which will not react with ammonia.
Which drying agent is not preferred to dry hydrogen?
What is used to dry ammonia?
Calcium oxide (CaO) is used as drying agent in the preparation of Ammonia in laboratory.
Can calcium oxide and phosphorus pentoxide be used to dry HCl gas?
Yes the above question is a right question Because the phosphorus pentoxide and calcium oxide are good drying agents but they can be used to dry HCL gas because they react with dry HCL gas and form their respective compounds.
Can calcium oxide be used to dry ammonia gas quicklime?
So in final it can be said that for drying ammonia gasquicklime are calcium oxide can be used and in the same way for drying HCL or Hydrogen chloride or hydrochloric acid gas the calcium oxide dry powder can be used or dry calcium chloride (cacl2) can be used. Also calcium chloride is a deliquescent substance.
What is the difference between anhydrous Koh and calcium sulfate?
The two drying agents work by different means: Anhydrous KOH is hygroscopic. It absorbs water from the atmosphere. It much better at doing so than more common hygroscopic drying agents like calcium chloride or calcium sulfate (drierite).
What are the factors that affect the usage of drying agent?
Usage of drying agent is ruled by four factors: cost, effectiveness, reactions it can provoke in substance being dried, level of discomfort in working process. P X 2 O X 5 is much more effective, K O H is cheaper and easier to handle. P X 2 O X 5 is also acidic and K O H is basic.