Problem: At 40.°C the value of Kw is 2.92 × 10–14.c. If the hydroxide ion concentration in a solution is 0.10 M, what is the pH at 40.°C?

FREE Expert Solution
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FREE Expert Solution

We’re being asked to determine the pH of solution 40.°C if the hydroxide ion concentration in a solution is 0.10 M, given a Kw of 2.92×10–14.


Recall that Kw is the autoionization constant of water, and is given by:


Kw=H+OH-


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Problem Details

At 40.°C the value of Kw is 2.92 × 10–14.

c. If the hydroxide ion concentration in a solution is 0.10 M, what is the pH at 40.°C?

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