pH for alkalis and bases is different?
Answers
Bases are substances that react with acids and neutralise them. They are usually metal oxides, metal hydroxides, metal carbonates or metal hydrogen carbonates. Many bases are insoluble - they do not dissolve in water. If a base does dissolve in water, we call it an alkali.
Bases are substances that react with acids and neutralise them. They are usually metal oxides, metal hydroxides, metal carbonates or metal hydrogen carbonates. Many bases are insoluble - they do not dissolve in water. If a base does dissolve in water, we call it an alkali.
The two terms “alkalinity” and “basicity” are quite confusing. Most of the people know that there is a difference between these two parameters, but only a few of them are able to define it correctly. The key difference between these two terms is best explained in their definitions. Basicity is a measure that directly depends on the scale and alkalinity is how much acid is needed to lower the pH into a significant acid value; it is also known as the buffering capacity of a water body. In other words, the pH value of basic solutions varies from 7-14; where the solutions with high pH values are more basic. Both of them have several definitions, but the general idea is similar.
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