Problem: At 0 degrees C, the ion product constant of water is 1.2x10 –15. The pH of pure water at this temperature is:6.887.007.467.56

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FREE Expert Solution
FREE Expert Solution

We’re being asked to determine the pH of pure water at 0 ˚C, given a Kw of 1.2 × 10–15.


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


Kw=H+OH-


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Problem Details

At 0 degrees C, the ion product constant of water is 1.2x10 –15. The pH of pure water at this temperature is:

  1. 6.88
  2. 7.00
  3. 7.46
  4. 7.56

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Ka and Kb concept. You can view video lessons to learn Ka and Kb. Or if you need more Ka and Kb practice, you can also practice Ka and Kb practice problems.

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Our tutors rated the difficulty ofAt 0 degrees C, the ion product constant of water is 1.2x10 ...as medium difficulty.

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What professor is this problem relevant for?

Based on our data, we think this problem is relevant for Professor Duim's class at UCD.