Question

Calculate the pH of a solution that contains 2.4 × 10 -5 M H 3O at 25°C. 9.38 11.60 4.62 4.17 2.40

Answer 1

Answer:

4.62

Explanation:

Using the equation -log[H3O+] = pH,

-log(2.4 x 10^-5) = 4.62

Answer 2

Answer:

4.62.

Explanation:

pH = - log (H+ concentration)

= - log (2.4*10^-5)

= - (-4.6197)

= 4.62.