A solution has [H+] = 4.0 x 10-8 M. The pH of this solution is
The pH is a measure of the acidity or basicity of a solution and is defined as the negative logarithm (base 10) of the hydrogen ion concentration ([H+]).
The given hydrogen ion concentration is [H+] = 4.0 x 10^(-8) M.
To find the pH, we can use the formula:
pH = -log10([H+])
Using this formula, we can calculate the pH of the solution:
pH = -log10(4.0 x 10^(-8)) = -(-7.39794) = 7.39794
Therefore, the pH of this solution is approximately 7.4.