### Kw = (Ka)(Kb)

Posted:

**Thu Jan 23, 2020 5:12 pm**If only Ka or Kb is given and the temperature is not stated, can we assume that it is at 25 Celsius and use 1.0x10^-14 to find the constant we need?

Created by Dr. Laurence Lavelle

https://lavelle.chem.ucla.edu/forum/

https://lavelle.chem.ucla.edu/forum/viewtopic.php?f=50&t=57114

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Posted: **Thu Jan 23, 2020 5:12 pm**

If only Ka or Kb is given and the temperature is not stated, can we assume that it is at 25 Celsius and use 1.0x10^-14 to find the constant we need?

Posted: **Thu Jan 23, 2020 5:15 pm**

Yes, if no temperature is stated you can assume 25 Celsius to solve!

Posted: **Thu Jan 23, 2020 5:16 pm**

Yes, you can assume that the temperature is 25 degrees and you can use the equation.

Posted: **Thu Jan 23, 2020 5:44 pm**

What would happen if a temperature is given? Would I not be allowed to use the equation?

Posted: **Thu Jan 23, 2020 5:45 pm**

Correct! 25 degree Celsius is the right temperature to assume.