Answer:
Acidic.
Explanation:
Hello,
In this case, we can know whether the solution is basic, acidic or neutral by computing the pH given the concentration of hydronium as shown below:
[tex]pH=-log([H^+])=-log(3.2x10^{-4})\\\\pH=3.49[/tex]
Therefore, since the pH is lower than 7, we sum up the solution is acidic.
Best regards.