Table of Contents
- Diluted or Concentrated Acids/Bases
– Mixing Water and Acid/Base
- Summary
- What’s Next?
In the previous segment of the chapter ‘Acids, Bases and Salts’, we studied the reaction of acids and bases with water. In this segment, let us understand diluted or concentrated acids/bases.
What are Diluted or concentrated acids/bases?
- In two solutions, the one which contains relatively less solute is the diluted solution and the one with more solute is the concentrated solution.
- In cases of acids/bases, water is considered to be the solvent and the acid or base is the solute.
- In a beaker with some water, add acid or base. As the amount of acid/base increases, the solution gets more and more concentrated.
What should be added first, water or acid/base?
- The process of dissolving an acid or a base in water is highly exothermic.
- When water is added to the acid/base, the heat generated may cause the mixture to splash out causing severe burns. The glass container which contains the solution may also crack due to excessive heating.
- When acid/base is added to water, the reaction will still be exothermic. The water is a good absorber of heat, so it absorbs the heat.
- Thus, adding acid/base to water is always better. It must be added drop by drop in the solution and should constantly be stirred because if a lot of acid/base is added directly to water, the heat generated will be so large that water will not be able to absorb the heat.
Summary
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Diluted or Concentrated Acid/Bases |
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