Sorry that is Incorrect
The correct answer is d, here is why:
pH= 7.7
14-7.7= 6.3 pOH= 6.3
[H+]= 2nd log(-7.7)= 1.995 x 10-8 [H+]= 1.995 x 10-8
[OH-}= 2nd log(-6.3)= 5.012 x 10-7= [OH-]= 5.012 x 10-7
pH= 7.7
14-7.7= 6.3 pOH= 6.3
[H+]= 2nd log(-7.7)= 1.995 x 10-8 [H+]= 1.995 x 10-8
[OH-}= 2nd log(-6.3)= 5.012 x 10-7= [OH-]= 5.012 x 10-7