The probe of the pH meter shown here is sitting in a beaker that contains a clear liquid. (c) Why is the temperature given on the pH meter?

Video transcript

Hey everyone, we're told that the ph of a clear liquid was determined using a ph meter, as shown below. Is the temperature given, with the ph reading necessary First, let's think about what we know about a ph scale. We know that it's based on the kw of water and r k w is our equilibrium constant, which is temperature dependent. So as we've learned, we have different values of KW at different temperatures. So when it's not at 25°C, our KW is not equal to our 1.0 times 10 to the -14. So to answer this question, our answer would be yes. The given temperature. Is it necessary since our k w and our ph our temperature dependent, and this is going to be our final answer. Now, I hope that made sense. And let us know if you have any questions.