Answer:
(H30+) = 3,98 x10 ^-11 M
Explanation:
The pH gives us an idea of the acidity or basicity of a solution. More precisely, it indicates the concentration of H30 + ions present in said solution. The pH scale ranges from 0 to 14: from 0 to 7 corresponds to acid solutions, 7 neutral solutions and between 7 and 14 basic solutions. It is calculated as:
pH = -log (H30 +)
We solve (H30+) and calculate:
(H30+) = antilog - pH
(H30+) = antilog - 10.4
(H30+) = 3,98 x10 ^-11 M
