any of the major appearances or aspects in which a thing of varying modes or conditions manifests itself to the eye or mind. 2. a stage in a process of change or development: Each phase of life brings its own joys. 3. a side, aspect, or point of view: This is only one phase of the question.
The pH of a neutral solution is 7. At this pH, the solution has equal concentrations of both the H+ and OH- ions, which is 10^-7 mole/litre. The presence of both the hydrogen and hydroxyl ions in equimolar concentrations makes the solution neutral.
The pH of something is negative logarithm of the concentration of the hydrogen ions. Basically... log101/10,000,000 = -log1010,000,000 This means 10 to the power of what â¦ is 10000000.107 = 10,000,000. So the pH is 7.rinking water has a pH of 7 â¦ , 7 is neutral... neutral is safe. hydrochloric acid has a pH level of fourteen. acids are harmful with a burning sensation when it comes in contact with skin. bases are slippery and bitter. coca-cola has a pH level of about 1.8.