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What is the pKW at 298 k?
- a)14
- b)7
- c)1
- d)0
Correct answer is option 'A'. Can you explain this answer?
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What is the pKWat 298 k?a)14b)7c)1d)0Correct answer is option 'A'. Can...
We know that the ionization constant of water at 298 k is given by [H3O+][OH–] = 1 x 10-14/mol2L2. pKW = pH + pOH = -log[H3O+] – log[OH–] = -log[H3O+][OH–] = -log10-14 = log1014 = 14. Therefore pKW at 298 k is 14.
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What is the pKWat 298 k?a)14b)7c)1d)0Correct answer is option 'A'. Can...
Explanation:
pKa of water (pKWat) at 298K:
- The pKa of water at 298K is approximately 14.
- This value indicates the acidity or basicity of water at a specific temperature.
pKa Value:
- The pKa value is the negative logarithm of the acid dissociation constant (Ka).
- It is used to quantify the strength of an acid in a solution.
pKWat at 298K:
- At 298K, the pKWat value of water is 14, indicating that water is neutral (neither acidic nor basic) at this temperature.
- The pH of pure water at 298K is 7, which is considered neutral.
Significance:
- Understanding the pKWat value is essential in various chemical and biological processes.
- It helps in determining the behavior of water in different environments and reactions.
Conclusion:
- In the given options, the correct answer is 'A) 14' for the pKWat value at 298K.
- Knowing this value contributes to a deeper comprehension of the properties and interactions of water in scientific studies.
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What is the pKWat 298 k?a)14b)7c)1d)0Correct answer is option 'A'. Can you explain this answer?
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