Answer to Question #149380 in General Chemistry for Ashley

Question

What is the pH of a solution whose [H3O+] concentration is [1 x 10 -9]

Answer 1

[H₃O⁺] = 1×10^-9

Solution:

We can convert between [H₃O⁺] and pH using the following equation:

pH = - log[H₃O⁺]

pH = - log(1×10^-9) = 9

pH = 9

Answer: The pH of the solution is 9.