the poh of a solution is 10.75. what is the concentration of oh⁻ ions in the solution? use oh⁻=10⁻poh…

the poh of a solution is 10.75. what is the concentration of oh⁻ ions in the solution? use oh⁻=10⁻poh. 3.162×10⁻¹⁰⁸ m 1.778×10⁻¹¹ m 1.075×10² m 5.623×10¹⁰ m

the poh of a solution is 10.75. what is the concentration of oh⁻ ions in the solution? use oh⁻=10⁻poh. 3.162×10⁻¹⁰⁸ m 1.778×10⁻¹¹ m 1.075×10² m 5.623×10¹⁰ m

Answer

Answer:

B. $1.778\times 10^{-11}\text{ M}$

Explanation:

Step1: Substitute pOH value

Given $[\text{OH}^-]=10^{-\text{pOH}}$ and $\text{pOH} = 10.75$. So $[\text{OH}^-]=10^{- 10.75}$.

Step2: Calculate the value

Using a calculator, $10^{-10.75}=1.778\times 10^{-11}\text{ M}$.