Why the dilute sulphuric acid is added into the water?

Water is less dense than sulfuric acid, so if you pour water on the acid, the reaction occurs on top of the liquid. If you add the acid to the water, it sinks.

Why is water not added to concentrated sulphuric acid in order to dilute it?

Water is not added to concentrated acid since it is an exothermic reaction. If water is added to the acid, there is a sudden increase in temperature and the acid being in bulk tends to spurt out with serious consequences.

Why do we have to add acid to water instead of water to acid?

When you mix acid with water, it’s extremely important to add the acid to the water rather than the other way around. This is because acid and water react in a vigorous exothermic reaction, releasing heat, sometimes boiling the liquid. When you add water to acid, the water boils and the acid may splatter and splash!

Why does sulphuric acid forms two types of salts with NaOH?

Two types of salts are formed when sulphuric acid reacts with NaOH because sulphuric acid is dibasic.

What happens when water is added to concentrated acid?

Heat is released when strong acids are mixed with water. If you add water to acid, you form an extremely concentrated solution of acid initially and the solution may boil very violently, splashing concentrated acid.

Why does sulphuric acid form two types of salts?

Sulfuric acid belongs to dibasic acids as it gives two hydrogen ions on dissociation with water. Due to this reason on reaction with strong bases, sulfuric acid forms salts that are neutral. On the other hand, on reaction with weak bases, sulfuric acid forms salts that are acidic.

Why concentrated sulphuric acid is weaker acid than dilute sulphuric acid?

The presence of water in dilute sulphuric acid increases the hydrogen ion concentration. Hence it is a stronger acid than concentrated sulphuric acid which contains comparatively less water.

Why is sulphuric acid concentrated?

Concentrated sulphuric acid is used for the dehydration of alcohol because sulphuric acid is a strong oxidising agent. It also has a strong affinity towards water thus absorbing water.

When conc Sulphuric acid is added to water whether the process is exothermic or endothermic?

When concentrated acid is added to water, whether the process is exothermic or endothermic? When concentrated acid is added to water, dissociation of acid takes place forming hydration of ions. As the breaking of bonds needs energy to proceed, therefore it is an Endothermic Reaction.

Do you pour water into acid or acid into water?

After measuring out your concentrated acid and water, the acid must always be added to the water. This is because when the two mix, heat is generated – this is called the “Enthalpy of solution” or “enthalpy of dissolution”.

What salt is formed from sulphuric acid?

As the reacting acid is sulphuric acid, then the salt produced will be a sulphate.

Why should water never be added to sulphuric acid to dilute it?

Why should water never be added to concentrated sulphuric acid to dilute it? This is because the reaction between acid and water is highly exothermic and produces an enormous amount of heat.

What is the role of sulphuric acid in the reaction reaction?

The equilibrium shifts to produce products. In dilute sulfuric acid there is lots of water (and little to no ethanol). The equilibrium shifts to produce reactants. As for the role of sulfuric acid, it acts as a proton source to enable the loss of leaving group in the forward direction and the electrophilic addition in the reverse direction.

Why is water not added to concentrated acid?

Water is not added to concentrated acid since it is an exothermic reaction. If water is added to the acid, there is a sudden increase in temperature and the acid being in bulk tends to spurt out with serious consequences. Please log in or register to add a comment.

What is the role of sulfuric acid in dilute ethyl alcohol reaction?

In dilute sulfuric acid there is lots of water (and little to no ethanol). The equilibrium shifts to produce reactants. As for the role of sulfuric acid, it acts as a proton source to enable the loss of leaving group in the forward direction and the electrophilic addition in the reverse direction. Highly active question.