Why conc H2SO4 Cannot be used for drying H2S?

Hydrogen sulphide gas cannot be dried using sulphuric acid as H2S gas is oxidised by sulphuric acid to Sulphur. Therefore, the H2S gas has chemical action with acid and hence it reacts with it , therefore, cannot be dried using it.

Can concentrated sulphuric acid be used as a drying agent?

Concentrated sulfuric acid has a very strong affinity for water. It is sometimes used as a drying agent and can be used to dehydrate (chemically remove water from) many compounds, e.g., carbohydrates.

Why does aqueous solution of ammonia act as a weak base?

Its aqueous solution is a weak base as the basicity is due to lone pair of electrons on its nitrogen atom. Ammonia is a typical weak base. Ammonia itself obviously doesn’t contain hydroxide ions, but it reacts with water to produce ammonium ions and hydroxide ions. Question 05.

Why ammonium nitrate is not used in the preparation of ammonia?

Ammonium nitrate is not used in the preparation of ammonia as it is explosive in nature and it decomposes forming nitrous oxide and water vapours.

Why is concentrated sulphuric acid kept in airtight bottles?

Concentrated sulphuric acid is a highly hygroscopic substance which absorbs moisture when exposed to air. Hence it is kept in air tight bottles to prevent it from being diluted.

Can concentrated H2SO4 be used to dry H2 gas justify?

First of all it is not H2, it is H2S. Hydrogen sulphide is a powerful reducing agent and concentrated sulphuric acid has significant oxidising power. So, concentrated H2SO4 is not a suitable drying agent for H2S.

Why h2so4 is used for drying HCL?

Concentrated Sulphuric Acid is a very good drying agent and can be used as Dehydrating agent too because it has a very strong affinity towards water and hence, it absorbs water quickly. Hence, concentrated sulphuric acid is the drying agent used for purifying hydrogen chloride gas.

Why is liquor ammonia a weak base?

Ammonia is a weak base because its nitrogen atom has an electron pair that readily accepts a proton. Also, when dissolved in water, ammonia acquires hydrogen ions from water to produce hydroxide and ammonium ions. It is the production of these hydroxide ions that imparts ammonia its characteristic basicity.

Why is H2SO4 not used as a drying agent for ammonia?

If you mean “ammonia” gas, not ammonium, then the reason that H2SO4 is not used as a drying agent for ammonia gas is because the ammonia would react with the H2SO4 to yield ammonium sulfate and water. In other words, the H2SO4 would destory the ammonia gas, not dry it. Which is more basic, Aniline or O-Ethyl Aniline? What is ammonia gas formula?

What happens if you mix NH3 and H2SO4 together?

Both are acidic oxides, so if the ammonia is damp (why else would you be drying it), then you would have either phosphorous or phosphoric acid which would react with and contaminate your ammonia. NH3 is a base, concentrated H2SO4 (which is used for drying some gasses) is a very strong acid and oxidant.

Why hydrogen sulphide gas cannot be dried using sulphuric acid?

Hydrogen sulphide gas cannot be dried using sulphuric acid as H 2 S gas is oxidised by sulphuric acid to Sulphur. Therefore, the H 2 S gas has chemical action with acid and hence it reacts with it, therefore, cannot be dried using it.

Why can’t ammonia be collected over quicklime?

Because it is highly soluble in water it cannot be collect over it. Passing ammonia gas over quicklime dries it. Being a basic gas ammonia cannot be drying by passing it through concentrated sulphuric acid or phosphourus pentaoxide as it reacts with ammonia to form ammonium sulphate or ammonium phosphate respectively.