Why is concentrated nitric acid not used in the above preparation?

Why is concentrated nitric acid not used in the above preparation?

This is because nitric acid is a strong oxidising agent, and oxidises hydrogen gas to convert it into the water.

Why the concentration of nitric acid Cannot be made more than 68\% even if it is distilled?

Nitric acid forms a constant boiling mixture with water containing 68\% acid. This mixture boils constantly at constant boiling point without any change in its composition. So nitric acid cannot be concentrated beyond 68\% by distillation of dilute solution of HNO3.

What is the maximum concentration of nitric acid?

Most commercially available nitric acid has a concentration of 68\% in water. When the solution contains more than 86\% HNO3, it is referred to as fuming nitric acid.

Why is concentrated nitric acid not used in the preparation of HCL?

Nitric Acid is a very strong oxidising agent. It oxidizes the Dihydrogen Gas produced during the reaction with metals to Water. That is why, Nitric Acid cannot be used for preparation of hydrogen gas.

Why is concentrated sulphuric acid used instead of concentrated nitric acid?

The sulphuric acid is used in the preparation of hydrogen chloride {HCl} and nitric acid {HNO3} because it is a non-volatile{ it has a high boiling point} and HCl and HNO3 are volatile acids.

Why concentrated sulphuric acid is not used in preparation of hydrogen?

Conc. sulphuric acid is not used in the preparation of hydrogen as it will produce sulphur dioxide.

How is 98 concentrated HNO3 obtained?

98\% NITRIC ACID is produced by concentrating 56\% NITRIC ACID in a distillation column with the aid of magnesium nitrate as a dehydrating agent. The resulting very pure product is highly concentrated, free of sulfates and chlorides and contains a low concentration of dissolved oxides.

How is 98 concentrated hno3 obtained?

Why should the addition of concentrated hno3 be done under the hood?

Nitric acid is a very strong oxidizer that can ignite on contact or react explosively with many organic and inorganic substances. If concentrated nitric acid contacts the skin, it can cause severe burns. Dilute concentrations that contact skin can cause mild irritation.

Why concentrated nitric acid Cannot be used in place of conc h2so4?

Concentrated hydrochloric acid cannot replace Conc. Sulphuric acid for the preparation of nitric acid because hydrochloric acid is volatile acid and hence nitric acid vapours will carry HCl vapours.

Why do we use conc sulphuric acid?

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. Sulfuric acid reacts with water to form hydrates with distinct properties.

What are the effects of concentrated nitric acid?

“Concentrated nitric acid is a strong acid and a strongly oxidizing acid. Ingestion causes burning and corrosion of internal tissues.” 1 If you spill concentrated nitric acid on your skin you should wash it off immediately with a large quantity of water. “Nitrogen dioxide forms acid on contact with moisture…

What are the safety precautions when using nitric acid?

Safety Precautions. “Concentrated nitric acid is a strong acid and a strongly oxidizing acid. Ingestion causes burning and corrosion of internal tissues.” 1 If you spill concentrated nitric acid on your skin you should wash it off immediately with a large quantity of water.

What happens if you get nitric acid on your skin?

1 If you spill concentrated nitric acid on your skin you should wash it off immediately with a large quantity of water. “Nitrogen dioxide forms acid on contact with moisture and is a poisonous, choking gas. Exposure to nitrogen dioxide may cause only slight pain or even pass unnoticed, but several days later may result in edema and cause death.”

What is the structure of nitnitric acid?

Nitric acid is a nitrogen oxoacid of formula HNO3 in which the nitrogen atom is bonded to a hydroxy group and by equivalent bonds to the remaining two oxygen atoms. It has a role as a protic solvent and a reagent. It is a conjugate acid of a nitrate.