Question

IF the pH of the solution ia 4 ·5, what is its pOH​

Answer 1

Answer:

Consider a solution with a pH =4.0. The [H+] of the solution would be 1.0×10−4M. Dividing Kw by this yields a [OH−] of 1.0×10−10M. Finally the pOH of the solution equals −log(1.0×10−10)=10.

Answer 2

Answer:

-log(1.0×10-10)=10

Explanation:

Consider a solution with a pH =4.0. The [H+] of the solution would be 1.0×10−4M. Dividing Kw by this yields a [OH−] of 1.0×10−10M. Finally the pOH of the solution equals −log(1.0×10−10)=10.