Question

pH of a ${10}^{-3}$ M $NaCl$ aqueous solution at ${25}^0$C is:

• A. 7
• B. 11
• C. 3
• D. all of the above

Answer 1

The correct option is A 7

$NaCl$ is a salt of strong acid $HCl$ with strong base $NaOH$ so its aq solution will always be neutral.

Thus,the $pH$ of the solution will be 7.