While diluting an acid why is it recommended that the acid should be added to water and not water to the acid

Hint : Dilution is the process of decreasing the concentration of a solute in a solution, usually simple by mixing with more solvent like adding more water to the solution. To dilute a solution means to add more solvent without the addition of more solute. Complete Step By Step Answer: When you mix strong acids and water, it makes a difference whether you add acid to water or water to acid. Always add acid to water and not water to acid. If you add a little water to a lot of concentrated acid, the resulting solution is still concentrated. The hydration reaction uses all the water, in this acid is a limiting reactant. Generating a lot of heat. The solution violently boils, spitting concentrated acid out of its container. If you add a little concentrated acid to a lot of water, water is a limiting reactant and the resulting solution is more dilute. Here, all the acid reacts, but there is extra water to absorb heat, lessening the chance of boiling. There are few factors that make it better to add acid to water. Diluting acid with water is an exothermic reaction, so it is easier to boil and splash water because water has a high heat capacity and can absorb a lot of heat. Also, some strong acids have a specific gravity or density than water. So, if you put water on top of acid, the heat that’s generated is at the acid surface. In this situation, the liquid readily boils and spots. On the other hand, if you pour acid on top of or into water, the water rises over the acid before ...

From school, I remember a very important rule: first you need to pour the water and then the acid (when you need to mix them) not vice-versa. This is because otherwise the aсid becomes very hot and splashing may happen. So, why does it get hotter when water is poured into it? What reaction takes place? This is mostly the case for sulfuric acid. Commercially available sulfuric acid is dense (~1.8 g/ml) and when water is added, it may not mix. In this case a layer of hot weak acid solution is formed, which boils and sprays around. When acid is poured into water, it flows down the flask and mixes much better, so no boiling occurs. The reason this occurs is due to the large amount of energy released in the hydration reaction of sulfuric acid ions. Do not believe that heat comes from dissociation, as the dissociation of acids, bases, and salts always consumes energy. The energy is released from subsequent hydration, and the release may be high, especially if $\ce$ ions are hydrated. This happens with strong acids and bases. Strong means the acid almost complete dissociates into ions; e.g. $\ce$, as the other comments have indicated. The reason you add acid to water is that if you add water to acid, the first drop of water reacts immediately, and the heat might be high enough to boil the water instantly, which could spray acid out of the container. $\begingroup$ @DmitryGrigoryev while I'm no expert chemist, I think that the first drop of acid in to water dilutes quickly, such th...

While diluting an acid, the acid should always be added slowly to water with constant stirring and in small amounts. The dilution of an acid is an exothermic reaction. So, when we add acid to water, the evolvedheat gets absorbed by the water that is in bulk. But when we add water to acid, a large amount of heat is evolved, the water turns into vapour and the acid splashes onto our clothes or face, causing severe burns.

NCERT Solutions for Class 10 Science Chapter 2 Acids, Bases, and Salts: Students must know that NCERT Acids Bases and Salts Class 10 Science chapter 2 solutions is an important chapter from which 3 marks or 5 marks questions may be asked. In these NCERT solutions for Acids Bases and Salts Class 10 Science chapter 2, you will come to know the answers and step wise solutions to the questions asked in Q 1. Answer: Litmus is a common indicator that is used to identify acid and base. The colour of litmus paper turns to blue indicates that the chemical is a base. If there is no change in colour, then the chemical is either acidic or neutral. First marks the three test tubes as A, B, and C. Now, (i) First of all, put the red litmus paper in each test tube one by one. The test tube in which red litmus paper will turn blue indicates the solution of that test tube is basic/Alkaline in nature. (ii) Now remaining two are either acidic or neutral. Now mix a drop of the basic solution with a drop of each of the remaining two solutions separately and then the nature of the drops of the mixtures is checked. If the colour of the red litmus turns blue, then the second solution is neutral and if there is no change in colour, then the second solution is acidic. This is because acidic and basic solutions neutralize each other. NCERT solutions for class 10 science chapter 2 Acids, Bases and Salts Topic 2.1 - Understanding the chemical properties of acids and bases Q.1 Answer: Curd and sour subs...

Table of Contents • • • • • • • • • • What happens when you add water to acid? Adding water to an acid or base will change its pH. Water is mostly water molecules so adding water to an acid or base reduces the concentration of ions in the solution. When an acidic solution is diluted with water the concentration of H + ions decreases and the pH of the solution increases towards 7. Why acid should be added to water and not water to acid? While diluting an acid, why is it recommended that the acid should be added to water and not water to the acid? Answer: Since adding water to a concentrated acid releases a large amount of heat, which can cause an explosion and acid burns on the skin, clothing, and other body parts. What happens when Sulphuric acid is added to water? When you mix concentrated sulfuric acid and water, you pour the acid into a larger volume of water. Sulfuric acid (H2SO4) reacts very vigorously with water in a highly exothermic reaction. If you add water to concentrated sulfuric acid, it can boil and spit and you may get a nasty acid burn. Why do you have to add acid to water? 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 acid should be added to water for diluting? After measuring out your...