Answer:
4
Explanation:
Data obtained from the question include:
[H3O+] = 0.0001 M
pH =?
pH is the negative logarithm of the hydrogen ion or hydronium ion. It is written as:
pH = - Log [H3O+]
Now inputing the value of [H3O+] into the equation above, the pH value can be obtained as follow illustrated below
pH = - Log [H3O+]
[H3O+] = 0.0001 M
pH = - Log 0.0001
pH = 4
Therefore, the pH of the solution is 4.
