A solution that is 0.45 M in NH 3 is also 0.45 M in NH 4 NO 3 . What is the pH of the solution? Posted on November 9, 2020 | by wp A solution that is 0.45 M in NH3 is also 0.45 M in NH4NO3. What is the pH of the solution? I know the answer is 9.26, but I do not know how to solve. Thank you!