Now, in Part C, remember, at 25 degrees Celsius, our Kw will always be 1.0
times 10th to negative 14. Now, if we want to take the PH of kw, which is PKW, we simply write PKW is equal to negative log of one times ten to the negative 14. Right? Now, I could either plug this guy into the calculator, or I could solve it in my head. Now, since we have a negative here and a negative here, negatives cancel. So we simply have one times 10th and negative four.