Question

At 50 degree C pK_w = 13.26. What is the pH of pure water at this temperature?

a. 6.63
b. 7.00
c. 7.37
d. 13.26

Answer 1

6.63

Step-by-step explanation:

From the relationship;

pH = pKw/2

Pkw = 13.26

Then it follows that;

pH = 6.63

Hence if. pKw = 13.26, the pH = 6.63