If a water sample has a hydrogen ion concentration of 4.0 x 10-5, what is the concentration of OH-? Is the solution acidic or basic?
Question
Solution 1
To find the concentration of OH- ions, we need to use the ion product of water, Kw, which is equal to [H+][OH-] and is always 1.0 x 10^-14 at 25 degrees Celsius.
Given that the concentration of H+ ions is 4.0 x 10^-5, we can set up the equation:
(4.0 x 10^-5) * [OH-] = 1.0 x 10^-14
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