At 65°C,the Ion-Product Constant of Water,K_w,is 1 $\times$ 10^-13

Multiple Choice

At 65°C,the ion-product constant of water,K_w,is 1.20 $\times$ 10^-13.The pH of pure water at 65°C is:

A) 7.000
B) 6.560
C) 5.880
D) 6.460
E) none of these