Answer: pOH of the solution will be 10.1
Step-by-step explanation:
pOH is defined as the negative logarithm of hydroxide ion concentration present in a solution. The equation used to represent pOH of the solution follows:
![pOH=-\log[OH^-]](https://img.qammunity.org/2019/formulas/chemistry/high-school/ur2f3m6zoirj5p05ac4nknmpiip97f0mi9.png)
We are given:
pH of the solution = 3.9
To calculate the pOH os the solution, we use the following equation:
![pH+pOH=14](https://img.qammunity.org/2019/formulas/physics/high-school/otjd6ndbvk7y7ydxz3hi0tqp69ayf7y56e.png)
Putting values in above equation, we get:
![3.9+pOH=14\\\\pOH=10.1](https://img.qammunity.org/2019/formulas/chemistry/high-school/1v8kpgueyrjt4yb58619z7zzjesmkfxtvv.png)
Hence, pOH of the solution will be 10.1