Acids and Bases
Mirza Hasan Mammadov
Acids and bases are really important in our daily day life. So let’s start with telling the definitions of them. Starting with acids, they are a substance which dissociates in water in order to produce one or more hydrogen ions. Also we can write H+ instead of hydrogen ion. Bases have the same definition, although the difference is that it firm hydroxide ions instead of hydrogen ions. We can write OH- instead of hydroxide ion. All alkali is bases but not all bases are alkali. However a base is normally a metal oxide or hydroxide. If the base is soluble in water, it is given a special name alkali If people know the properties of acids and bases, they could make it in a better possible way. Properties of Acid and Bases
Acids release a hydrogen ion into water solution.
| Releases a hydroxide ion into water solution
| Acids neutralize bases in a neutralization reaction
| Neutralize acids in a neutralization reaction
| Acids corrode active metals
| Denature protein
Acid turn blue litmus to red
| Bases turn red litmus to blue
| Acid taste sour
| Bases taste bitter
Acidic and basic are two extremes that describe a chemical property chemicals. The pH scale measures how acidic or basic a substance is. The pH scale ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic. A pH greater than 7 is basic. So basically a neutral water should have a pH of 7, but usually we see that they might be 6.8 or 7.5. That is still drinking water. Usually water with pH of 7 is much expensive than the average one which is usually from 6.8 to 7.5 .
Some common acid and bases with their pH scale :
| Common Bases
| Human saliva
Milk of magnesia...
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