Answer:
Acidic.
Step-by-step 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:
![pH=-log([H^+])=-log(3.2x10^(-4))\\\\pH=3.49](https://img.qammunity.org/2021/formulas/chemistry/college/46gtagfhiowlqzyt9rgjoa9gnh8kohg7ui.png)
Therefore, since the pH is lower than 7, we sum up the solution is acidic.
Best regards.