Jawabanmu

2014-04-21T22:13:08+07:00
OH- =  \sqrt{ \frac{10^{-12} }{10^{-5} } 2.10^{-1}  } --> itu 2 kali karena valensinya 2
 \sqrt{2 .10 ^{-10} } = 10^{-5}  \sqrt{2}
pOH = 5-log \sqrt{2} 

pH = 14-(5-log  \sqrt{2} )
= 9+log \sqrt{2}