Given a solution with a hydroxide ion concentration oh = 2.73 × 10-5 what is the ph

We know that,
pH = -log [H+] and pOH = -log [OH-]

When water is used as a solvent pH + pOH = 14

Given [OH-] = 2.73 X 10-5 mol/dm3

∴ pOH = -log (2.73 X 10-5)
           = 5

Thus, pH = 14 - pOH - 14 - 5 = 9

Here, ∵ pH is > 7, it suggest that solution is basic in nature. 

If the water vapor content stays the same and the temperature drops, then the relative humidity increases. its vise versa.if the water vapor content stats the same and the temperature rises, the relative humidity decreases. so, yes, i'd say that temperature and humidity have a strong relationship.

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