Question

I need step by step answer ​

Answer 1

Answer: 10⁻⁸°⁹

Explanation:

`pH=log\bigg((1)/([H^+])\bigg)\\\\\text{use log expansion rules to get:}\\pH=log\ 1-log\ [H^+]\\\\8.9=0\ -\ log\ [H^+]\\\\8.9=-log\ [H^+]\\\\-8.9=log\ [H^+]\\\\\text{use log transformation rules to get the following exponential equation:}\\10^(-8.9)=[H^+]`