pH

What is the pH of 10-8 M NaOH aqueous solution?

4 Answers

1
Ashish Sharma ·

It is a little more than 7 as it is basic solution.
total concentration of OH- in the solution [OH-]=10-7(from water)+10-8(from base)=1.1×10-7
so pOH=-log(1.1×10-7)=7-log1.1
therefore pH=14-pOH=14-(7-log1.1)=7+log1.1
so pH is little more than 7

1
adesh narang ·

i thought it was 8 :)

1
skygirl ·

no it cant be 8 'coz [OH-] from base is comparable wid [OH-] from water...

39
Dr.House ·

u have to consider H+ given by water also.

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