Common

Why is there no reaction between hydrogen chloride and sulphuric acid?

Why is there no reaction between hydrogen chloride and sulphuric acid?

No redox reaction. Just evolution of HCl. It is beceause sulphuric acid is very hydrophillic it strongly attracts water molecules and so is used to dry HCl and many other chemicals.

Why is concentrated sulphuric acid used to dry 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.

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Why concentrated sulphuric acid is not used to dry hydrogen gas though it is a good drying agent?

But concentrated sulphuric acid cannot be used for drying dihydrogen gas. Why? Conc. H2SO4 on absorbing H2O from moist H2 produces so much heat that hydrogen catches fire.

What is the reaction between hydrochloric acid and sulphuric acid?

Generally, when we add dilute hydrochloric acid to a strong (or concentrated) solution of sulfuric acid, a dehydration reaction takes place. In this reaction, the sulfuric acid strips the hydrochloric acid of its water, effectively converting it to hydrochloric acid gas.

What can concentrated sulphuric acid dry?

Hot concentrated sulfuric acid reacts with most metals and with several nonmetals, e.g., sulfur and carbon. 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 is concentrated sulphuric acid not used as a drying agent in the preparation of ammonia?

Ammonia gas is a base gas and concentrated H2SO4 is an acid thus cannot dry the gas instead it will react to form white fumes of (NH4)2SO4. They would instantly react and no ammonia would come out.

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Why does Sulphuric acid react faster than hydrochloric acid?

The concentration of hydrogen ions in the sulfuric acid is greater than the concentration of hydrogen ions in the hydrochloric acid (of the same concentration of acid). Therefore the frequency of effective collisions is greater for the sulfuric acid, leading to a faster initial rate of reaction.

Is Sulphuric acid more concentrated than hydrochloric acid?

Hydrochloric acid is the stronger of the two. It has a pKa around -6.3 while the pKa of sulfuric acid is only around -3. Here are the chemical equations for the dissociations of the two acids.

Which gas is dried by conc H2SO4?

Correct the following statements : Hydrogen is dried by passing it through conc. H2SO4.

What happens when carbohydrates react with H2SO4?

The sulphuric acid dehydrates the sugar (carbohydrate), removes the hydrogen and oxygen atoms releasing water as a product and carbon is left behind. The charring reaction of carbohydrate with concentrated sulphuric acid is one of the confirmation of the dehydrating power of $ {H_2}S{O_4} $ .

What is the redox reaction between halide ions and sulphuric acid?

THE REDOX REACTIONS BETWEEN HALIDE IONS AND CONCENTRATED SULPHURIC ACID This page describes and explains the redox reactions involving halide ions and concentrated sulphuric acid. It uses these reactions to discuss the trend in reducing ability of the ions as you go from fluoride to chloride to bromide to iodide.

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Why is H2SO4 not a drying agent for H2S?

H2SO4 is a strong oxidising agent while hydrogen sulphide is a strong reducing agent. When H2S reacts with the sulphuric acid, it will be oxidised to its elemental form. Hence H2so4 cannot be a drying agent for H2S.

What happens when sodium chloride is heated with concentrated sulfuric acid?

Because the concentrated acid has a fairly high boiling point, it can be used to release more volatile acids from their salts, e.g., when sodium chloride (NaCl), or common salt, is heated with concentrated sulfuric acid, hydrogen chloride gas, HCl, is evolved. Hi.

Is concentrated sulphuric acid an acid or an oxidising agent?

The concentrated sulphuric acid can act both as an acid and as an oxidising agent. Concentrated sulphuric acid acting as an acid The concentrated sulphuric acid gives a hydrogen ion to the halide ion to produce a hydrogen halide.