Answer:
Explanation:
The pH scale is a logarithmic scale that runs from 1 to 14.
1 is the lower limit of the scale and 14 is the upper limit of the scale. On a pH scale, to represent a decrease of one unit, the concentration of the hydrogen ion or the hydroxyl ion must change.
A decrease in 1 unit or 1 pH represents a concentration of 10moldm⁻³.
Note: pH= -log₁₀[H⁺]
