Question

Need help fast!!

What is the pH of a solution with a 1.50 x 10-9 M hydroxide ion concentration? (4
points)
1) 0.176
2) 5.18
3) 8.82
4) 9.20

Answer 1

The answer is "5.18 ".

Explanation:

It's a question of chemistry. Therefore, the following solution is provided:

We will first determine the solution's pOH. The following can possible:

The concentration of Hydroxide ion
`[OH^(-)] = 1.5* 10^(-9)\ M`

`pOH =?\\\\pOH = -\log [OH^(-)]\\\\pOH = -\log 1.5* 10^(-9)\\\\pOH = 8.82\\\\`

Furthermore, the pH of the solution shall be established. It was provided as follows:

`pOH = 8.82\\\\pH =?\\\\pH + pOH = 14\\\\pH + 8.82 = 14\\\\`

When collecting all the like terms:

`pH = 14 -8.82\\\\pH = 5.18`

Therefore, the solution of pH is 5.18.