Chemistry
posted by Tarkan .
What will be the pH of an aqueous solution containing 0.040 mol/L sodium hydroxide??
I got 1.40 or 1.398 I rounded the numbers is
my answer right??? If not what's the right answer??

You calculated the pOH since it is 0.04M NaOH. YOu need to subtract your 1.40 from 14.00 for the pH.