Question

What is the [OH-] in a solution with a poh of 3.90

Answer 1

Answer: 1.26 x 10 -4

Step-by-step explanation:

Answer 2

Answer: The hydroxide ion concentration is
`1.26* 10^(-4)M`

Step-by-step explanation:

pOH is defined as the negative logarithm of hydroxide ion concentration in the solution.

To calculate the pOH of the reaction, we use the equation:

`pOH=-\log[OH^-]`

where,

`pOH=3.90`

Putting values in above equation, we get:

`3.90=-\log[OH^-]`

`[OH^-]=1.26* 10^(-4)M`

Hence, the hydroxide ion concentration is
`1.26* 10^(-4)M`