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Calculate the [oh- ] for a solution that is ph = 4.0
Accepted Answer
Here's how to calculate the [OH-] for a solution with pH = 4.0:
1. Relationship between pH and pOH: pH + pOH = 14
2. Calculate pOH: pOH = 14 - pH = 14 - 4.0 = 10.0
3. Calculate [OH-] from pOH: [OH-] = 10^-pOH = 10^-10.0 = 1.0 x 10^-10 M
Therefore, the [OH-] for a solution with pH = 4.0 is 1.0 x 10^-10 M.
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