What concentration of sodium hydroxide is needed to give an aqueous solution with a pOH of 3.860? Molarity of sodium hydroxide = M

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Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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**Determining the Concentration of Sodium Hydroxide (NaOH)**

In this exercise, we are asked to find the concentration of sodium hydroxide (NaOH) necessary to achieve an aqueous solution with a pOH of 3.860.

**Question:**

What concentration of **sodium hydroxide** is needed to give an aqueous solution with a pOH of **3.860**?

**Answer:**

Molarity of **sodium hydroxide** = **___** M

To find the molarity of sodium hydroxide, you can use the relationship between pOH and OH⁻ concentration:

\[ \text{pOH} = -\log [\text{OH}^-] \]

Rearranging this equation to solve for \([\text{OH}^-]\):

\[ [\text{OH}^-] = 10^{-\text{pOH}} \]

Substitute the given pOH value and perform the calculation to find the molarity of the sodium hydroxide solution.
Transcribed Image Text:**Determining the Concentration of Sodium Hydroxide (NaOH)** In this exercise, we are asked to find the concentration of sodium hydroxide (NaOH) necessary to achieve an aqueous solution with a pOH of 3.860. **Question:** What concentration of **sodium hydroxide** is needed to give an aqueous solution with a pOH of **3.860**? **Answer:** Molarity of **sodium hydroxide** = **___** M To find the molarity of sodium hydroxide, you can use the relationship between pOH and OH⁻ concentration: \[ \text{pOH} = -\log [\text{OH}^-] \] Rearranging this equation to solve for \([\text{OH}^-]\): \[ [\text{OH}^-] = 10^{-\text{pOH}} \] Substitute the given pOH value and perform the calculation to find the molarity of the sodium hydroxide solution.
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