What changes occur when a solution goes from ph 5 to ph 8
When a solution goes from pH 5 to pH 8, there are a few significant changes that occur. pH is a measure of the acidity or alkalinity (basicity) of a solution. A solution with a pH of 5 is considered acidic, while a solution with a pH of 8 is considered slightly basic.
1. Increase in Alkalinity: As the pH increases from 5 to 8, the solution becomes more alkaline or basic. This means that there is an increase in the concentration of hydroxide ions (OH-) relative to the concentration of hydrogen ions (H+). The higher the pH value, the more basic the solution becomes.
2. Decrease in Acidity: As the solution becomes more basic, the concentration of hydrogen ions (H+) decreases. In an acidic solution, the concentration of hydrogen ions is higher than the concentration of hydroxide ions. However, as the pH increases, this balance shifts, resulting in reduced acidity.
3. Change in Color Indicator: pH changes often result in changes in indicator colors. Acidic solutions typically turn red when indicators such as litmus paper, phenolphthalein, or bromothymol blue are added. On the other hand, basic solutions usually show shades of blue or purple. Therefore, when a solution goes from pH 5 to pH 8, you may observe a change in color if an indicator is used.
It's important to note that pH is a logarithmic scale, meaning that each whole number increase or decrease on the pH scale represents a tenfold change in acidity or alkalinity. So, going from pH 5 to pH 8 represents a relatively significant shift towards alkalinity.